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DECnet
...nto one of the first peer-to-peer network architectures, thus transforming DEC into a networking powerhouse in the 1980s. ...cintosh]] computers and PCs running both DOS and Windows under the name '''DEC Pathworks''', transforming these systems into DECnet end-nodes in a network

17 KB (2,405 words) - 17:43, 13 January 2024
RSX-11
| creator = [[Digital Equipment Corporation|DEC]] ...em]]s for [[PDP-11]] computers, created by [[Digital Equipment Corporation|DEC]]; it was common in the late 1970s and early 1980s. It was designed for and

7 KB (1,188 words) - 22:11, 6 August 2023
RSTS/E
| creator = [[Digital Equipment Corporation|DEC]] ...ed]] [[operating system]] developed by [[Digital Equipment Corporation]] ("DEC") for the [[PDP-11]] series of 16-bit [[minicomputer]]s, and used primarily

14 KB (2,134 words) - 16:06, 3 May 2023
PDP-11
...mputer]]s introduced in 1969 [1] by the [[Digital Equipment Corporation]] (DEC), in production by them from 1970-1990. Their life-time spanned a period of ...UNIBUS]] for a bus, and the later ones which used the [[QBUS]]. Eventually DEC stopped producing [[UNIBUS]] PDP-11's (the last were the [[PDP-11/44]] and

10 KB (1,393 words) - 16:03, 23 April 2024
VAX
...eXtension') for a family of computers from [[Digital Equipment Corporation|DEC]]. They were the successors to the [[PDP-11]] series of [[minicomputer]]s. ==New Emulator Hardware==

3 KB (388 words) - 16:50, 22 April 2024
PDP-11/20
...al Equipment Corporation|DEC]]; its [[KA11 CPU]] was built from a set of [[DEC card form factor|quad width extended-length]] cards carrying SSI [[transist ...rdware multiply and divide, [[floating point]], and [[memory management]]. DEC provided a series of optional accessories that provided some of these capab

6 KB (900 words) - 19:27, 31 December 2023
PDP-11/60
...in its day, a rather unsuccessful model of [[Digital Equipment Corporation|DEC]]'s [[PDP-11]] line; although considerable more complex than the [[PDP-11/3 ==Hardware==

3 KB (461 words) - 16:34, 11 January 2022
PDP-11/70
The cabling used for the Main Memory Bus ([[DEC part number]] 70-10824) consists of a set of four BC06R-xx [[flat cable]]s; * [http://bitsavers.org/pdf/dec/pdp11/1170/ 11/70] - documentation at [[Bitsavers]]

5 KB (729 words) - 23:43, 29 February 2024
Digital Equipment Corporation
'''Digital Equipment Corporation''', or '''DEC''', was a large computer company (at one time, the second-largest in the wo * [[Taxonomy of DEC consoles]]

5 KB (624 words) - 19:19, 19 March 2024
RK611 disk controller
...rs are done using [[Direct Memory Access|DMA]]. Data is protected with a [[hardware]]-generated and checked [[error-correcting code]] (ECC); corrections (up to The RK611 consists of a specially wired 9-slot [[backplane]] and five [[DEC card form factor|hex]] cards; these are:

4 KB (563 words) - 13:33, 26 February 2023
RL01/02 disk drive
...troduced in 1976 and 1978 respectively, by [[Digital Equipment Corporation|DEC]]. They used an [[IBM 5440]] type pack, as used on the [[IBM System/3]]. Up ...|RLV11]] and [[RLV12 disk controller|RLV12]]; the former consists of two [[DEC card form factor|quad]] cards, and needs a QBUS [[backplane]] with [[CD int

8 KB (1,357 words) - 16:33, 18 August 2023
PDP-11 architecture
...f 16-[[bit]] [[minicomputer]]s designed by [[Digital Equipment Corporation|DEC]], in production from 1970-1990. Although the basic [[address space]] was 1 ...Pointer]]. (Other registers can be used as [[stack]] [[pointer]]s, but the hardware uses this one for [[subroutine]] call and return, [[interrupt]]s, [[trap]]s

13 KB (1,949 words) - 17:37, 29 February 2024
RK05 disk drive
...he earlier [[RK02/03 disk drive|RK02]] and RK03 drives (which were sold by DEC, but not manufactured by them), which in turn were inspired by the IBM 2315 ...ive bus, on which the selected drive was encoded in [[binary]]. The RK05's hardware selects which kind of drive select encoding to use based on the RK11-C/RK11

7 KB (1,170 words) - 00:30, 15 August 2023
RK8-E disk controller
==Hardware== The [[DEC card form factor|quad]] boards which made up the RK8E were the M7104, M7105

712 bytes (111 words) - 18:25, 29 April 2021
VAX-11/780
...ounced on October 25<sup>th</sup>, 1977 at [[Digital Equipment Corporation|DEC]]'s Annual Meeting of Shareholders.[[#ref_4|[4]]] The VAX-11/780 was given ...two DEC VAX-11/780's and made the first multi-CPU Unix computer, preceding DEC's dual processor [[VAX-11/782]]. The operating system was based on the 4.2

8 KB (1,030 words) - 21:30, 25 April 2024
VAX-11/782
The VAX-11/782 presented in the "VAX Hardware Handbook Volume 1 - 1986": ...avers.org/pdf/dec/vax/handbook/VAX_Hardware_Handbook_Volume_1_1986.pdf VAX Hardware Handbook Volume 1 - 1986] (VAX-11/782 on pdf pages 36ff)

3 KB (420 words) - 09:14, 15 July 2023
PDP-8 family
...f 12-[[bit]] [[minicomputer]]s produced by [[Digital Equipment Corporation|DEC]]. | [[PDP-8/E]] || 1970 || 1978 || ??? || [[DEC card form factor|quad]] [[printed circuit board|PCBs]] || First [[OMNIBUS]

4 KB (432 words) - 14:44, 7 March 2023
VAX-11/750
...0 CPU]]. It supported several pre-existing [[Digital Equipment Corporation|DEC]] [[input/output|I/O]] [[bus]]es ([[UNIBUS]] and [[MASSBUS]]), so there are ...AX-11/750 comes in an [[H9645]] cabinet and has one large [[backplane]] ([[DEC part number]] 50-13821/70-16486/54-13822), into which plug:

8 KB (1,079 words) - 21:52, 7 April 2024
PDP-8/E
| manufacturer = [[Digital Equipment Corporation|DEC]] ...el in the [[PDP-8 family|PDP-8 line]] from [[Digital Equipment Corporation|DEC]], and introduced the [[OMNIBUS]] for interfacing to [[device controller]]s

4 KB (618 words) - 14:11, 14 July 2023
User notes for RSTS/E 9.x system generation
...cause of all the scripts being rewritten in [[DCL]], and with that change, DEC has included more comprehensive and powerful install scripts. ...there are several methods of generating a RSTS/E system, depending on what hardware you have available.

964 bytes (163 words) - 15:56, 3 May 2023
VAX-11/730
...ge architecture, the [[Central Processing Unit|CPU]] was shrunk to three [[DEC card form factor|hex]] boards. The machine seems to have been most popular ==Hardware Details==

5 KB (708 words) - 12:22, 29 March 2023
PDP-10
...ion of the earlier [[PDP-6]] [[instruction set architecture|ISA]], whose [[hardware]] engineering had been a failure. (The machines were so similar at the prog DEC sold 4 different generations of PDP-10 processors: the [[KA10]], the [[KI10

11 KB (1,640 words) - 20:59, 8 March 2024
PDP-8 architecture
The [[PDP-8 family|PDP-8]] is a 12-bit [[architecture]] from [[DEC]]; the first commercially successful [[minicomputer]]. It was a [[load-stor ...words (32K words / 48 KB), which were controlled by optional additional [[hardware]].

22 KB (3,497 words) - 19:34, 29 November 2022
Bus
[[Digital Equipment Corporation|DEC]] noted that having two buses seemed wasteful and expensive for small, mass ...h of the work on these systems concerns software design, as opposed to the hardware itself. In general, these third generation buses tend to look more like a [

14 KB (2,170 words) - 05:09, 5 September 2019
Linux
Date: 19 Dec 91 23:35:45 GMT ISA+AT-disk is currently the hardware setup)

28 KB (4,805 words) - 18:01, 29 February 2024
VAX-11/785
<div id="ref_1">[1] VAX Hardware Handbook Volume 1 - 1986. </div> * [http://www.bitsavers.org/pdf/dec/vax/785/ 785] - documentation on [[BitSavers]]

2 KB (193 words) - 04:26, 13 January 2024
FLIP CHIP
...to build computers, and [[peripheral]]s for them. They were a successor to DEC's earlier [[System Module]]s. They were introduced as a replacement largely ...(the so-called 'solder' side); the contact pads were 'numbered' from the [[DEC Alphabet]]. A FLIP CHIP plugged directly into a 144-pin connector block [[b

10 KB (1,460 words) - 15:50, 6 March 2024
PDP-8
| manufacturer = [[Digital Equipment Corporation|DEC]] ...e first model of the [[PDP-8 family]], was [[Digital Equipment Corporation|DEC]]'s major breakthrough, and now considered the first really successful [[mi

3 KB (365 words) - 18:28, 8 February 2024
PDP-8/I
..., with a few dual-height. It was the first [[Digital Equipment Corporation|DEC]] computer to be built using ICs. * KE8/I [[Extended Arithmetic Element]], which supported [[hardware]] integer multiplication and division, one-[[bit]] double-word shifts, and

3 KB (416 words) - 14:10, 14 July 2023
VAX 9000 series
...s a high-performance [[VAX]], described by [[Digital Equipment Corporation|DEC]] as a '[[mainframe]] computer'. They were built around a System Control Un ==Hardware==

3 KB (417 words) - 00:45, 7 May 2024
SunOS
|Dec 1988 |Dec 1991

4 KB (484 words) - 08:09, 20 November 2023
MicroVAX 3500/3600
...00 and 3600 used the BA213 enclosure. (The [http://vtda.org/docs/computing/DEC/VMS/EK-O33AB-OM-002_MicroVAX_3600_VAXserver_3600_3602_Operation_Jul1988.pdf <div id="ref_3">[3] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46</div>

3 KB (410 words) - 20:26, 10 March 2024
Zork
a somewhat paranoid DEC engineer who prefers to remain anonymous. ...2A, 1-Oct-94; contains all the rooms and puzzles of the original MIT Zork. DEC FORTRAN source code by Robert M. Supnik; see dungn32b.zip for a port to DOS

21 KB (3,303 words) - 07:30, 6 September 2023
UNIX First Edition
...P-11/20]]'s built; there was no [[disk]] [[mass storage]] available from [[DEC]] for the machine when it first arrived. ...and the researchers sharing a machine (dangerous, since the -11/20 had no hardware [[memory management]]) that a second -11/20 was purchased for the sole use

6 KB (926 words) - 19:13, 29 February 2024
ES 40 Emulator
...ently ES 40 can run [[OpenVMS]] for the Dec [[Alpha]]. Hopefully once the hardware is more fleshed out it will run the following:

576 bytes (76 words) - 09:06, 20 May 2022
History of Zork
In the beginning, back in the 1960's, DEC (Digital Equipment Corporation) created the PDP-10, a medium-sized computer ...ed most of its features in designing Zork. The guy who did it was mostly a hardware person, so perhaps he didn't know what he was up against. At any rate, shor

38 KB (6,681 words) - 16:32, 19 December 2018
DEC indicator panel
...nal state of the machine, were provided by [[Digital Equipment Corporation|DEC]] for their earlier computers (such as the [[KA10]]), in common with the ot ...) This was a significant loss; in addition to helping with debugging (both hardware and software issues), they gave an extensive insight into how the machine w

4 KB (612 words) - 20:33, 5 January 2024
XENIX
: ''XENIX was originally developed on a DEC Virtual Address Extension (VAX) running the Virtual Memory System (VMS) and ...r to the 16-bit microprocessors. Currently scheduled machines included the DEC LSI-11/23, Zilogs Z8001 and Z8002, Intel's 8086 and 286, and Motorola's MC6

12 KB (1,893 words) - 19:28, 21 October 2023
MS-DOS
...s such as Quad-Density and 3 and a half inches floppy disks. OEMs included DEC Rainbow, Tandy, AT&T, and Wang. ...and had to be augmented with modifications as/if needed for the particular hardware and with vendor-written versions of utilities found in PC-DOS. Documentatio

8 KB (1,327 words) - 07:03, 22 May 2023
Gordon Letwin OS/2 usenet post
only OS standard they could use that to leverage their hardware and IBM, DEC, et. al.

21 KB (3,783 words) - 03:41, 17 December 2018
Installing ITS on SIMH
...[[RP06]] and the RP07. Although these disk types are very different at the hardware level, from the simulator's point of view they differ only in capacity and ...ITS IO and paging microcode, which differs significantly from the standard DEC microcode.

15 KB (2,486 words) - 14:39, 20 December 2017
Incompatible Timesharing System
...hich were modified with MIT-designed and built [[virtual memory|paging]] [[hardware]] (which that generation of PDP-10 [[Central Processing Unit|CPU]] did not ...ar if an intermediate version did); paging was added as soon as the custom hardware to support it was done. Pages from other processes could be mapped into a p

12 KB (1,926 words) - 21:29, 8 February 2024
Qemu-0.8.0-openstep-busmouse-2.diff
--- qemu-0.8.0-distclean/Makefile.target Mon Dec 19 17:51:53 2005 # Hardware support

10 KB (1,296 words) - 21:26, 16 December 2018
Qemu
*[[DEC Alpha]] (really incomplete) enable virtual hardware watchdog [default=none]

15 KB (2,245 words) - 12:58, 27 February 2024
Installing Ultrix 4.0 on SIMH
qe0: DEC DELQA Ethernet Interface DEQNA-lock Mode, hardware address 08:00:2b:aa:bb:cc qe0: DEC DELQA Ethernet Interface DEQNA-lock Mode, hardware address 08:00:2b:aa:bb:cc

13 KB (1,865 words) - 18:41, 3 July 2022
Windows NT
| architecture = Originally [[MIPS]], then [[i386]], [[DEC Alpha]], [[PowerPC]], [[Itanium]], [[x64]] ...ware on the i386, but running instructions inside a v86 virtual machine (A hardware feature of the 386 and higher CPUs).

15 KB (2,465 words) - 20:47, 13 January 2024
Windows NT 3.1 HCL
Hardware Compatibility List Digital Equipment Corp. application DEC[R] 400xP

144 KB (18,526 words) - 03:17, 17 December 2018
Virtual PC
== Emulated hardware == *dec 21140 nic

2 KB (336 words) - 22:32, 21 October 2018
VT100
...rial line interface|RS-232]] based dumb [[video terminal]] introduced by [[DEC]] in 1978. It featured [[cursor]] keys, and the ability to place text where ...minicomputer]]..). Xon/Xoff was the most common method for flow control on DEC/VT100 systems. To handle the speed problem some people would put the VT100

4 KB (664 words) - 14:34, 11 August 2023
Windows NT 3.5 HCL
Hardware Compatibility List x86 Architecture Uniprocessor Computers Hardware Compatibility List.

279 KB (34,581 words) - 03:21, 17 December 2018
Setting Up Version 1.0 of UNIX/32V Operating System
The distribution tape can be used only on a DEC VAX-11/780 with RP06 or RM03 disks and with TE16 tape drives. The t Since DEC does not provide a program on the console floppy which boots the VAX

24 KB (3,883 words) - 10:33, 6 March 2023
A UNIX™ Operating System for the DEC VAX-11/780 Computer
A UNIX™ Operating System for the [[Digital Equipment Corporation|DEC]] [[VAX-11/780]] Computer ...ly reduced. The authors conclude that the VAX-11/780 provides an excellent hardware environment for running UNIX and C software.

49 KB (7,745 words) - 14:29, 6 May 2023
Setting up the Third Berkeley Software Tape
The distribution tape can be used only a DEC <sup>1</sup> - DEC, VAX, UNIBUS and MASSBUS are trademarks of Digital Equipment Corporation.<b

42 KB (6,834 words) - 03:01, 17 January 2023
RT-11
Welcome to RT-11 Version 4. RT-11 V04 provides new hardware support [[Category: DEC Operating Systems]]

6 KB (830 words) - 23:09, 20 October 2018
TS11 controller
...NIBUS]] [[magnetic tape controller]]s from [[Digital Equipment Corporation|DEC]]; it was part of the [[TS11 Subsystem]], along with a [[TS04 Tape Transpor The TS11 controller is a [[DEC card form factor|hex]] card, the '''M7982''', which plugs into an [[Small P

3 KB (369 words) - 20:54, 31 December 2023
TUK50 Host Adapter Module
It is a [[DEC card form factor|quad]] [[printed circuit board|board]], the '''M7547''', a * Hardware revision - An 8-wide [[DIP switch]] used to set the hardware revision level of the module; 'open' on a switch reads as '0'

2 KB (363 words) - 15:09, 24 April 2024
UDA50 Disk Controller
...a UNIBUS [[backplane]] of a [[PDP-11]] or [[VAX]], and associated mounting hardware and cables. * Minor hardware modification to make [[buffer]]ing easier.

6 KB (980 words) - 10:55, 31 August 2023
MSV11-J memory module
...the CPU are shown in normal font, and those which can also be set by the [[hardware]] in ''italics''. To start with, unlike other [[Digital Equipment Corporation|DEC]] boards, this board does not contain the ''Exx'' identification numbers fo

8 KB (1,374 words) - 00:43, 30 July 2023
VAX 8650
...'''VAX 8650''' was an improved version of [[Digital Equipment Corporation|DEC]]'s second-generation [[VAX]], the [[VAX 8600]]. An 8600 could be field-upg * <div id="ref_1">[1] VAX Hardware Handbook. Volume 2-1986. </div>

2 KB (270 words) - 20:13, 6 May 2024
Pcemu
...ator]], that emulates an [[i8086]] [[CPU]], along with text mode [[VGA]] [[hardware]]. The first version was written by David Hedley, as part of his Final Yea ...[[portable]], and can run on Sun & i386 machines. I've no luck with the [[DEC Alpha]], but I haven't looked to much into it. Also I've done a super basi

1 KB (182 words) - 18:00, 20 October 2018
Linux 0.00
...three operating systems interruption, software interruption, and processor hardware interrupt abnormal # Timer_interrupt hardware interrupt handling procedures, the film tells the system time, the switchin

14 KB (1,991 words) - 01:23, 20 December 2018
Setting Up Unix - Seventh Edition
The distribution tape can be used only on a DEC 012700 Use the DEC ROM or other

27 KB (4,414 words) - 02:56, 17 January 2023
RH750 Massbus Adapter
It was implemented on one [[DEC card form factor|extended hex]] card, which mounts in the VAX-11/750 [[back * ''VAX Hardware Handbook (1980-81)'' (EB-17281-20) - the RH750 is covered in some detail in

1 KB (166 words) - 01:03, 6 June 2022
Setting up UNIX - Sixth Edition
___ the DEC bulk ROM for tape; it reads block 0, not grams at 100000. These programs correspond to the DEC bulk

29 KB (3,738 words) - 02:56, 17 January 2023
Installing NetBSD 1.2 on the SIMH MicroVAX II
rd54|RD54|DEC RD54 on Microvax:\ Disk geometry for most DEC disks can be found in the disktab

17 KB (2,338 words) - 21:14, 10 April 2012
RA81 Disk Drive
| manufacturer = [[Digital Equipment Corporation|DEC]] ...a [[non-removable-media disk]] drive from [[Digital Equipment Corporation|DEC]], introduced in June, 1982; it is member of the [[Digital Storage Architec

4 KB (542 words) - 03:16, 31 August 2023
UNIX System V
AT&T also sold a SYSVr4 based product which ran on AT&T branded hardware, which typically was little more than [[multi-processor]] [[x86]] computers [[Category: Non-DEC Operating Systems]]

1 KB (190 words) - 04:26, 29 December 2022
VAX-11/725
<div id="ref_1">[1] VAX Hardware Handbook Volume 1 - 1986. </div> ...avers.org/pdf/dec/vax/handbook/VAX_Hardware_Handbook_Volume_1_1986.pdf VAX Hardware Handbook Volume 1] - the VAX-11/725 is described on pages 1-5–1-8 (pp

2 KB (201 words) - 17:24, 29 August 2023
RA60 Disk Drive
The '''RA60 Disk Drive''' is a [[Digital Equipment Corporation|DEC]] [[Standard Disk Interconnect|SDI]] [[removable-pack disk]] drive, introdu The RA60 can also be connected in a dual-[[hardware port|port]] arrangement, permitting its use by two [[device controller|cont

4 KB (524 words) - 10:36, 31 August 2023
RA80 Disk Drive
| manufacturer = [[Digital Equipment Corporation|DEC]] ...]] [[non-removable-media disk]] drive from [[Digital Equipment Corporation|DEC]]. A physically large drive (14-inch platters, in a heavy enclosure 10.5" x

2 KB (332 words) - 03:16, 31 August 2023
RM80 Disk Drive
| manufacturer = [[Digital Equipment Corporation|DEC]] ...ASSBUS]] [[non-removable-media disk]] from [[Digital Equipment Corporation|DEC]]; it held 124 MB. It was apparently the MASSBUS version of the [[R80 Disk

3 KB (355 words) - 16:23, 18 August 2023
RA82 disk drive
| manufacturer = [[Digital Equipment Corporation|DEC]] ...]] [[non-removable-media disk]] drive from [[Digital Equipment Corporation|DEC]]. It is member of the [[Digital Storage Architecture]]. A physically large

2 KB (306 words) - 03:12, 31 August 2023
TPA-11/580
...and can work with intrinsically infinite program lengths" (KFKI TPA-11/580 Hardware Handbook) ...operates and looks like from the software's view as if it were an original DEC machine. It run VAX/VMS, the original diagnostics and all software develope

4 KB (587 words) - 00:38, 2 January 2024
Setting up (BSD 4.0) the Fourth Berkeley Software Tape
The basic distribution tape can be used only on a DEC ** DEC, VAX, UNIBUS and MASSBUS are trademarks of Digi-

57 KB (8,582 words) - 03:00, 17 January 2023
Bug fixes and changes in 4.1bsd
new RM-80 Winchester drive from DEC is supported. Not- hardware configurations by determining the available

39 KB (5,307 words) - 05:01, 11 December 2018
INTEL 80386 PROGRAMMER'S REFERENCE MANUAL
customers with hardware support, software support, customer training, and After a customer purchases any system hardware or software product,

890 KB (107,817 words) - 03:20, 3 January 2024
Installing Ultrix 4.5 on SIMH
*[[DEC]] [[MicroVAX 3800/3900|MicroVAX 3800]] ; Host System : DEC MicroVAX 3800

44 KB (6,192 words) - 09:30, 29 September 2023
Netbooting a VAXstation
This page describes my struggles with trying to netboot a DEC VAXstation 4000/60 for installing NetBSD. I originally wrote this document ** It also needs a MOP server, which is called ''mopd'' for Linux (it is a DEC specific boot protocol)

12 KB (1,853 words) - 20:06, 10 December 2015
KUV11 Writeable Control Store
...r]]-[[programmable]] [[microcode]] [[memory]] extension, along with some [[hardware]] aids to [[debug]]ging micro-[[program]]s. It allows additional, custom [[ It consists of a [[DEC card form factor|quad]] [[printed circuit board|card]] (M8018) which plugs

2 KB (337 words) - 21:12, 2 July 2023
QBUS memories
...]] memory''' cards are available both from [[Digital Equipment Corporation|DEC]], and from a large number of outside vendors who produced and sold QBUS [[ ...nto [[QBUS#Variable address size|Q16]], Q18 and Q22 memories. In addition, DEC later specified the [[Private Memory Interconnect|PMI]] memory bus, an exte

5 KB (835 words) - 02:21, 20 September 2022
4.2BSD driver for DEC Deuna Ethernet board
A [[4.2 BSD]] [[device driver]] for [[Digital Equipment Corporation|DEC]] [[Digital Ethernet UNIBUS Network Adapter|DEUNA]] [[Ethernet]] board; bac Subject: 4.2BSD driver for DEC Deuna Ethernet board

35 KB (6,389 words) - 02:51, 16 January 2024
UNIX* System V and 4.1C BSD
Berkeley), based on experience with both systems on a DEC 8.2.2 Variety of hardware and protocols

113 KB (13,419 words) - 02:06, 17 December 2018
DEC card form factor
Many different [[Digital Equipment Corporation|DEC]] computers (e.g. [[PDP-8 family|PDP-8]], [[PDP-10]], [[PDP-11]]) used a st ...eared in the [[VAX-11/780]], and were called '''super hex''' boards within DEC.

2 KB (372 words) - 12:02, 24 May 2022
DEC alphabet
...ification|contact fingers]] on the edge of [[DEC card form factor|standard DEC cards]] (the first use). It runs: [[Category: DEC Hardware]]

720 bytes (132 words) - 15:42, 8 August 2023
KL10
...P-10]] processors. It was built out of [[Emitter-coupled logic|ECL]], on [[DEC card form factor|hex]] cards. It was the first [[microcode|micro-programmed * CPU hardware variants (-PA, -PV and -PW);

11 KB (1,737 words) - 13:06, 2 April 2024
KA10
| design type = asynchronous with hardware subroutines ...[PDP-6]] architecture). It was built out of discrete [[transistor]]s, on [[DEC card form factor|short single]] [[FLIP CHIP]] cards, plugged into large cus

2 KB (298 words) - 07:28, 6 September 2023
DL11 asynchronous serial line interface
...computers which provided a single [[asynchronous serial line]]. It was a [[DEC card form factor|quad]] format card, and used an [[Small Peripheral Control ...[Berg connector]] header on the top edge of the card, using the standard [[DEC asynchronous serial line pinout]].

7 KB (1,055 words) - 17:22, 6 February 2024
KT11-B Paging Option
...option for the [[PDP-11/20]], produced by [[Digital Equipment Corporation|DEC]]'s Computer Special Systems group; it can provide a "[[multi-user]], machi Finally, hardware features prevent any user from interfering with the overall operation of th

15 KB (2,571 words) - 22:23, 11 October 2022
PDP-11 Memory Management
...ntrol field (read/only, read/write, etc), a 'dirty' bit (maintained by the hardware), etc. The layout of the PDR is: * [[KT11-B Paging Option]] - DEC experiment with paging

9 KB (1,311 words) - 18:10, 2 July 2023
KDF11-U CPU
...plugs into a custom slot in the likewise custom PDP-11/24 [[backplane]] ([[DEC part number]] 54-13817, assembly 70-16905). ==Hardware details==

6 KB (1,087 words) - 16:16, 6 February 2024
FP11 floating point
...oint]] data types and instructions supported by most [[PDP-11]]s which had hardware support for floating point. (Some supported a simpler, less capable floatin ...ng mode for each, and whether floating results were rounded, or 'chopped' (DEC's term for truncated, to avoid confusion with series truncation).

3 KB (406 words) - 20:42, 13 June 2023
RX01/02 floppy drive
The '''RX01''' and '''RX02''' floppy drives were [[DEC]]'s first floppy drives, and were used on a number of computers, such as th ...'not''' the same as the 'normal' double-density 8" floppy, but a unique-to-DEC format. Single-density recording uses a double frequency ([[Frequency Modul

8 KB (1,195 words) - 20:09, 15 August 2023
LINC
...]). It was a 12-bit computer, built out of [[Digital Equipment Corporation|DEC]] [[System Module|System Building Blocks]]. The initial version had only 10 It became a product for DEC, which sold both the original, and several descendants: the [[LINC-8]], and

3 KB (487 words) - 01:35, 28 February 2024
Core memory
...M|DRAM]]-era perspective, seems quaintly dinosaurian. Individual pieces of hardware one can actually ''see'' with the naked eye, for ''each'' bit? [[Digital Equipment Corporation|DEC]] design practise was to include temperature sensors in the core planes, an

8 KB (1,299 words) - 02:33, 4 March 2024
Vonada's Engineering Maxims
...ing compiled by Don Vonada, an engineer at [[Digital Equipment Corporation|DEC]], and reproduced in: ...J. Craig Mudge, John. E. McNamara, "''Computer Engineering: A DEC View of Hardware Systems Design''" (Digital Press, Bedford, 1978)

2 KB (299 words) - 12:36, 3 December 2023
FIS floating point
...point]] [[instruction]]s supported by a few of the [[PDP-11]]s which had [[hardware]] support for floating point. ...between the two, the FIS was useful since [[Digital Equipment Corporation|DEC]]'s [[FORTRAN]] [[compiler]] (the main 'target' for the FIS) for the PDP-11

2 KB (355 words) - 17:49, 7 December 2021
PDP-11 Extended Instruction Set
...he basic [[PDP-11]] [[PDP-11 architecture|instruction set]]; it includes [[hardware]] multiply and divide, and also multi-bit shifts. The exact [[instruction]] ...1-E was US$1200. This almost certainly why [[Digital Equipment Corporation|DEC]] didn't just include the KE11-E functionality in the 'standard' -11/40, bu

2 KB (266 words) - 17:20, 28 October 2022
BSD Fast File System
...tion of most meta-data, and all data, it was still somewhat susceptible to hardware failures such as [[head crash]]es). ...nformation too was not all on a single platter, and vulnerable to a single hardware failure.

11 KB (1,759 words) - 19:20, 12 June 2023
System unit
...' is a standard modular [[backplane]] from [[Digital Equipment Corporation|DEC]], used mostly in [[UNIBUS]] [[PDP-11]]s. The initial system units were [[DEC card form factor|hex]] height, four-slot assemblies. (Sometimes a number of

1 KB (178 words) - 15:45, 23 December 2023
PDP-6
| design type = asynchronous with hardware subroutines ...tly) [[object code]] compatible. It was built out of [[System Module]]s, [[DEC]]'s predecessor to the [[FLIP CHIP]] module series (out of which the first

3 KB (510 words) - 07:28, 6 September 2023
MicroVAX 2000
* [http://www.bitsavers.org/pdf/dec/vax/2000/ VAX 2000] - documentation at [[Bitsavers]] ** [http://www.bitsavers.org/pdf/dec/vax/2000/EK-VTTAA-TM.001_VAXstation_2000_and_MicroVAX_2000_Technical_Manual

5 KB (595 words) - 17:41, 13 January 2024
MicroVAX 3100 Model 95
<div id="ref_4">[4] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46</div> [[Category: DEC VAX systems]]

1 KB (128 words) - 04:37, 24 May 2023
MicroVAX 3100 Model 96
<div id="ref_3">[3] VAX Hardware Handbook. Volume 2-1986. </div> [[Category: DEC VAX systems]]

1 KB (106 words) - 04:38, 24 May 2023
VAX 6000 Model 200
<div id="ref_3">[3] VAX Systems Hardware Handbook - VAXBI Systems. </div> * [http://www.bitsavers.org/pdf/dec/vax/6200/EK-620AA-MG-001_VAX_6200_Options_And_Maintenance_May88.pdf VAX 620

2 KB (196 words) - 18:24, 29 March 2023
VAX 8200
<div id="ref_1">[1] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46</div> <div id="ref_3">[3] VAX Hardware Handbook. Volume 2-1986. </div>

2 KB (208 words) - 23:08, 28 March 2024
VAX 8250
<div id="ref_2">[2] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46</div> * [http://www.bitsavers.org/pdf/dec/vax/8200/KA825MA1.TXT KA825 Maintenance Advisory] (EK-KA825-MA-001)

2 KB (191 words) - 14:16, 22 May 2023
VAX 8300
<div id="ref_1">[1] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46</div> <div id="ref_3">[3] VAX Hardware Handbook. Volume 2-1986. </div>

2 KB (210 words) - 23:10, 28 March 2024
VAX 8350
<div id="ref_2">[2] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46</div> * [http://www.bitsavers.org/pdf/dec/vax/8200/KA825MA1.TXT KA825 Maintenance Advisory] (EK-KA825-MA-001)

2 KB (201 words) - 23:11, 28 March 2024
VAX 8500/VAX 8530
<div id="ref_3">[3] VAX Hardware Handbook. Volume 2-1986. </div> <div id="ref_4">[4] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46</div>

2 KB (174 words) - 16:57, 23 May 2023
VAX 8550
[[Category: DEC VAX systems]] <div id="ref_2">[2] VAX Hardware Handbook. Volume 2-1986. </div>

1 KB (124 words) - 16:35, 19 May 2023
VAX 8600
The '''VAX 8600''' was [[Digital Equipment Corporation|DEC]]'s second-generation [[VAX]], intended as the replacement for the [[VAX-11 * <div id="ref_1">[1] VAX Hardware Handbook Volume 1 - 1986. </div>

2 KB (199 words) - 01:48, 7 May 2024
VAX 8700
<div id="ref_3">[3] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46</div> ...avers.org/pdf/dec/vax/handbook/VAX_Hardware_Handbook_Volume_2_1986.pdf VAX Hardware Handbook Volume 2] - the VAX 8700 is covered in Chapter 2 (pp. 24-49 of the

2 KB (189 words) - 04:28, 13 January 2024
VAX 8800
<div id="ref_2">[2] VAX Hardware Handbook. Volume 2-1986. </div> ...avers.org/pdf/dec/vax/handbook/VAX_Hardware_Handbook_Volume_2_1986.pdf VAX Hardware Handbook Volume 2] - the VAX 8800 is covered in Chapter 2 (pp. 24-49 of the

2 KB (235 words) - 00:10, 2 January 2024
VAX 88x0
<div id="ref_1">[1] VAX Systems Hardware Handbook -- VAXBI Systems. EB-31692-46</div> ...G-001_88xx_System_Hardware_Users_Guide_Mar88.pdf VAX 8820/8830/8840 System Hardware User's Guide] (EK-8840H-UG-001)

2 KB (204 words) - 04:31, 13 January 2024
VAX-11/751
<div id="ref_2">[2] VAX Hardware Handbook Volume 1 - 1986. </div> [[Category: DEC VAX systems]]

1 KB (145 words) - 18:07, 29 March 2023
System Module
...y which preceded the later [[FLIP CHIP]]s. They were used to construct all DEC's computers from the [[PDP-1]] through the [[PDP-7]] (which also used some ...omputerhistory.org/resources/access/text/2013/06/102688924-05-01-acc.pdf ''DEC Building Block Logic''], Digital Equipment Corporation, Maynard, 1960 (A-40

3 KB (411 words) - 15:51, 6 March 2024
DECpc axp 150 and DEC 2000 Model 300 AXP
== DECpc '''axp''' 150 and DEC 2000 Model 300 AXP == | name = DECpc '''axp''' 150 and DEC 2000 Model 300 AXP

2 KB (200 words) - 00:25, 13 January 2024
DECstation 3100
The '''DECstation 3100''' is a [[workstation]] from [[DEC]] built around a [[MIPS]] [[MIPS R2000|R2000]] [[microprocessor]]. * [http://www.bitsavers.org/pdf/dec/mips/EK-302AB-OG-002_DECStation_2100_3100_Operators_Guide_Sep1989.pdf DECSt

2 KB (191 words) - 22:53, 17 February 2024
DECstation 2100
The '''DECstation 2100''' is a [[workstation]] from [[DEC]] built around a [[MIPS]] [[MIPS R2000|R2000]] [[microprocessor]]. The 2100 * [http://www.bitsavers.org/pdf/dec/mips/EK-302AB-OG-002_DECStation_2100_3100_Operators_Guide_Sep1989.pdf DECSt

1 KB (166 words) - 22:38, 17 February 2024
Ethernet
...LAN introduced in 1980 by a consortium of [[Digital Equipment Corporation|DEC]], [[Intel]] and [[Xerox]] (hence its common label at the time, '''DIX Ethe ...hort form: 'MAC Address' or just: 'MAC'), sometimes 'Ethernet Address' or 'Hardware Address' (the last is rather misleading if not explicitly used related to E

8 KB (1,199 words) - 22:00, 5 October 2023
TOPS-10
| creator = [[DEC]] '''TOPS-10''' was [[DEC]]'s [[operating system]] for the early [[PDP-10]] computers. It was descend

1 KB (190 words) - 03:32, 28 November 2023
RH11 MASSBUS controller
==Hardware== Two of them [[DEC card form factor|hex]]-sized:

6 KB (951 words) - 15:40, 25 February 2022
TENEX
...omputers; it was the ancestor of the later [[Digital Equipment Corporation|DEC]]-supplied operating system for the [[DECSYSTEM-20]], [[TOPS-20]]. ...I Lab]] added hardware to their KA10 for the same purpose). (The lack of a DEC [[mainframe]] with virtual memory, at the time, was the primary driver for

6 KB (943 words) - 15:47, 6 January 2024
PDP-15
 The '''PDP-15''' was [[Digital Equipment Corporation|DEC]]'s last 18-bit computer, and the only one implemented using [[integrated c

4 KB (591 words) - 13:40, 11 July 2023
H960 rack
...), built around the '''H950 frame''', were [[Digital Equipment Corporation|DEC]]'s standard 19" wide rack (an industry-wide standard width for rack-mounte ...s, each of which could be further sub-divided into two 5-1/4" spaces. Most DEC gear (e.g. [[BA11 mounting boxes]]) was designed to fit in spaces of these

3 KB (440 words) - 16:54, 22 April 2024
RH70 MASSBUS controller
==Hardware== One [[DEC card form factor|hex]]-sized:

2 KB (318 words) - 15:45, 25 February 2022
BA11-K mounting box
...960]] series of 19"-wide racks produced by [[Digital Equipment Corporation|DEC]], one of the [[BA11 mounting boxes]]. It could contain up to 5 standard si ..., where they had been facing down); they were generally mounted with the [[DEC edge connector contact identification|A-row connectors]] at the back, next

4 KB (755 words) - 03:18, 11 July 2023
FP11-A Floating-Point Processor
...CPU|KD11-EA]] [[Central Processing Unit|CPU]]). It consists of a single [[DEC card form factor|hex]] board, the '''M8267'''. It supports the full [[PDP-1 For hardware debugging/repair, when the M8267 card is normally placed on a hex [[extende

4 KB (734 words) - 02:17, 13 October 2022
PDP-9
...igital Equipment Corporation|DEC]]'s fourth 18-bit computer, and the first DEC [[Central Processing Unit|CPU]] to use [[microcode]]. A little over 400 wer Multiply/divide was a hardware option, the KE09A EAE, which also performed shifting; it was installed in p

6 KB (801 words) - 22:14, 9 February 2024
UNICHANNEL 15 System
The '''UNICHANNEL 15 System''' ('''UC15''') is an group of hardware sub-systems which allows a [[PDP-15]] to communicate with a [[PDP-11]] (usu ...15-HUCMA-B-D_UC15_Nov73.pdf UC15 unichannel-15 system maintenance manual] (DEC-15-HUCMA-B-D)

1 KB (180 words) - 14:48, 28 November 2022
KD11-A CPU
...Instruction Set]], a hex card. There was also optional [[floating point]] hardware, the [[KE11-F Floating Instruction Set]], a quad card; it was not the full The basic KD11-A was contained on four [[DEC card form factor|hex]] cards:

4 KB (588 words) - 05:52, 8 April 2024
WAITS
Much like its "cousin" ITS, WAITS has support for exotic hardware: custom made [[vector graphics|vector displays]] from [[III]], [[raster]] d The SAIL timesharing system started 1966 on a PDP-6, running DEC's Monitor. A KA10 was added in 1968, making the PDP-6 a secondary processo

6 KB (920 words) - 13:33, 6 January 2024
DEC edge connector contact identification
...A-F (for smaller cards, see below). The groups are often called 'rows' in DEC documentation; the term 'slots' is also used, but this is confusing, becaus Within each row, the individual contacts are 'numbered' from the [[DEC Alphabet]]; those on the component side are further numbered '1', and those

2 KB (338 words) - 18:20, 16 May 2020
TX-2
...e he helped create the descendant [[LINC tape]] system; he then moved to [[DEC]], where he helped create [[DECtape]], very similar to LINCtape. ..., J. Craig Mudge, John. E. McNamara, ''Computer Engineering: A DEC View of Hardware Systems Design'', Digital Press, Bedford, 1978

2 KB (346 words) - 22:11, 3 March 2024
TX-0
..., J. Craig Mudge, John. E. McNamara, ''Computer Engineering: A DEC View of Hardware Systems Design'', Digital Press, Bedford, 1978 - Some material on the TX-0,

5 KB (764 words) - 00:25, 20 March 2024
PDP-1
...d [[instruction]]s to perform multiplication and division at high speed in hardware (previously, they had been done in software [[subroutine]]s, albeit with su They were built out of DEC's [[System Module|System Building Blocks]]

4 KB (536 words) - 23:18, 27 February 2024
PDP-5
...t 12-bit computer, the predecessor to the [[PDP-8]]; in some sense, it was DEC's first [[minicomputer]] (although the -5 pre-dated the creation of that te ...adial links from the CPU to individual [[peripheral]]s used in all earlier DEC machines, such as the 18-bit machines like the [[PDP-1]].

2 KB (360 words) - 20:03, 7 February 2024
VT52
...' was a very popular [[video terminal]] by [[Digital Equipment Corporation|DEC]], introduced 1975. The [[cathode ray tube|CRT]] displays 24 lines of 80 ch * [http://www.bitsavers.org/pdf/dec/terminal/vt52/ VT52] - documentation at [[Bitsavers]]

4 KB (577 words) - 12:26, 16 January 2024
UNIBUS Experimental Ethernet interface
The [[network interface]] was a [[DEC card form factor|hex]] [[printed circuit board|board]] which plugged into a ...) was set by a [[Dual Inline Package|DIP]] switch on the card. Also, the [[hardware]] did not fill in the source address in the packet [[header]], the [[device

4 KB (553 words) - 03:18, 13 January 2024
MINITS
==Hardware== [[Category: Non-DEC Operating Systems]]

3 KB (347 words) - 08:50, 27 February 2024
KD11-B CPU
...as a two-board [[microcode|micro-programmed]] processor contained on two [[DEC card form factor|hex]] cards. The basic micro-code was 40 bits wide, includ Like other early, low-cost PDP-11s, it did not support either hardware [[floating point]], or [[PDP-11 Extended Instruction Set|EIS]]. It did incl

11 KB (1,726 words) - 21:07, 2 July 2023
Camexec
...is feature to write a process that emulated DEC's DOS so that we could use DEC's code to do things like run the assembler and compilers. ...ee blocks seem like they were in use; SALV fixed that. But barring bugs or hardware failures, the disk data structures wouldn't get corrupted if SALV weren't r

3 KB (544 words) - 01:12, 1 April 2024
Commercial Instruction Set
...t Corporation|DEC]]'s [[VAX]] line of computers, the early models included hardware support for the VAX [[architecture]]'s Commercial Instruction Set, but this

683 bytes (91 words) - 02:03, 16 December 2018
FP11-F Floating-Point Processor
...It implements the full [[FP11 floating point]]; it consists of a single [[DEC card form factor|hex]] card (the '''M7093'''), which plugs into a dedicated * [http://bitsavers.org/pdf/dec/pdp11/1144/EK-FP11F-TM-002_Nov79.pdf FP11-F floating-point processor techni

961 bytes (149 words) - 02:20, 13 October 2022
KD11-Z CPU
==Hardware Details== The basic KD11-Z CPU consisted of five [[DEC card form factor|hex]] boards:

4 KB (668 words) - 15:59, 6 February 2024
SITS
...y, SITS reputation for being unstable was unwarranted, and partly due to a hardware problem. From one of the then-undergrads at CCC: === Hardware support ===

7 KB (1,015 words) - 22:43, 15 March 2024
VT11 Graphic Display Processor
...[vector graphics]] [[video terminal]] from [[Digital Equipment Corporation|DEC]]. It was a [[UNIBUS]] device, which used [[Direct Memory Access|DMA]] to r It was capable of displaying text (using a built-in [[hardware]] [[character generator]]), vectors (solid, dashed, and dot-dash), and poin

2 KB (233 words) - 12:42, 27 February 2024
Negative logic
...hese levels are found in the [[input/output|I/O]] [[bus]]ses of some early DEC computers, such as early [[PDP-8 family|PDP-8]]'s. [[Category: Hardware Basics]]

750 bytes (122 words) - 22:24, 22 November 2019
Front panel
* [[DEC indicator panel]] [[Category: Hardware Basics]]

1 KB (201 words) - 01:04, 22 January 2024
FPF11 floating point processor
It is a [[DEC card form factor|quad]] [[printed circuit board|board]] (the M8188) which p ...The FPF11 contains [[microcode]] to control both the main CPU, and the [[hardware]] on the FPF11. The main CPU is sent [[no-op]] microinstructions when there

2 KB (383 words) - 02:31, 12 October 2022
LSI-11 chip set
Chip numbers of the form 23-xxxxx-rr, etc are [[DEC part number]]s (where 'rr' seems to represent a revision number - 0, if not The Data Path chip is a 1611H (various DEC part numbers), and the Control chip is a 2007C (ditto); the uROM chips are

5 KB (773 words) - 22:42, 20 December 2023
DIBOL
...was a [[programming language]] created by [[Digital Equipment Corporation|DEC]] in the late 1960's for business [[application]]s. ...f [[RSTS]] provided time-sharing for [[BASIC]] users on machines without [[hardware]] support for time-sharing).

1 KB (201 words) - 16:21, 16 October 2019
DRV11-J High-Density Parallel Interface
...not [[program compatible]] with any other [[Digital Equipment Corporation|DEC]] parallel port controller. * REQ B - Request B - Signal from user's hardware which can be tested, or cause an [[interrupt]] (below)

2 KB (383 words) - 03:58, 10 June 2020
FCO CIBCI-I001
level diagnostics on any of the currently supported CI hardware. in your CI hardware. Rename the selected version to

49 KB (4,759 words) - 09:21, 27 February 2023
DR11-C general device interface
...parallel interface|parallel ports]], one input, and one output. It was a [[DEC card form factor|quad]] format card (M7860), and used an [[Small Peripheral * REQ B - Request B - Signal from user's hardware which can be tested, or cause an [[interrupt]] (below)

3 KB (432 words) - 23:26, 24 November 2022
KD11-D CPU
...eavy use of [[Read-only memory#PROM|PROMs]]). It was contained on single [[DEC card form factor|hex]] [[printed circuit board|card]] (the M7263), the firs ...t PDP-11s, it did not support either [[memory management]] of any kind, or hardware [[floating point]], [[PDP-11 Extended Instruction Set|EIS]] [[instruction]]

2 KB (385 words) - 22:37, 31 March 2022
FP11-E Floating Point Processor
The '''FP11-E Floating Point Processor''' is the optional [[hardware]] [[floating point]] unit for the [[KD11-K CPU]] of the [[PDP-11/60]]. The It was a 4 [[DEC card form factor|hex]] board [[co-processor]]:

1 KB (229 words) - 02:19, 13 October 2022
Stanford Artificial Intelligence Laboratory
...t of its early life, SAIL principally used [[Digital Equipment Corporation|DEC]] [[PDP-10]] machines, running their own [[WAITS]] [[time-sharing]] [[opera ...5A_DECsystem-1020_Hardware_Manual_DEC-10-XSRMA-D_Jan77.pdf DECsystem-10/20 Hardware Manual] - an appendix in this copy (pp. 227-241 of the PDF) contains detail

4 KB (582 words) - 02:20, 10 January 2024
LSI-11 CPUs
The '''LSI-11 CPUs''' were [[Digital Equipment Corporation|DEC]]'s first cost-reduced [[PDP-11]] [[Central Processing Unit|CPUs]], using a The first [[LSI-11]] was a [[DEC card form factor|quad]] board (M7264) with additional functionality on-boar

3 KB (453 words) - 16:35, 6 April 2024
KE11-A Extended Arithmetic Element
It is implemented as several [[DEC card form factor|quad]] and dual [[printed circuit board|boards]], plugged ...]] and [[PDP-11/04]], which likewise did not implement multiplication in [[hardware]], etc.

5 KB (680 words) - 21:17, 2 July 2023
KE11-B Extended Arithmetic Element
...ic Element''' is a [[program compatible]] re-implementation (on a single [[DEC card form factor|hex]] board - the M7840) of the [[KE11-A Extended Arithmet ...]] and [[PDP-11/04]], which likewise did not implement multiplication in [[hardware]], etc. The KE11-B can likewise be used with these later models.

1 KB (186 words) - 21:17, 2 July 2023
DM11 Asynchronous 16-line Single-Speed Multiplexer
...t]]s, and [[half-duplex]] and [[full-duplex]] operation are supported in [[hardware]]. The 64-[[character]] FIFO buffer made input over-runs unlikely. ...multiple cards; a [[flat cable]] connected this to separate rack-mounted [[DEC card form factor|dual-height]] [[DM11 distribution panel]] backplane (which

8 KB (1,088 words) - 02:24, 19 February 2023
MSV11-Q QBUS memory
The '''MSV11-Q''' (M7551) is a [[DEC card form factor|quad]]-height [[QBUS]] [[Dynamic RAM|DRAM]] [[main memory] ...the CPU are shown in normal font, and those which can also be set by the [[hardware]] in ''italics''.

6 KB (898 words) - 21:25, 16 March 2022
DUP11 synchronous serial line interface
...ine interface|DU11]] with [[cyclic redundancy check|CRC]] computation in [[hardware]]. Like the earlier DU11, it used [[programmed I/O]] (with separate receive It was a [[DEC card form factor|hex]] card, the '''M7867'''; it plugged into an [[Small Pe

5 KB (809 words) - 04:21, 18 February 2023
DR11-L general-purpose interface
...provided a pair of 16-[[bit]] parallel ports, both input-only. It was a [[DEC card form factor|quad]] format card ('''M7864'''), and used an [[Small Peri * SI - Status In: Signal from user's hardware which can be tested

3 KB (426 words) - 21:24, 24 November 2022
DRV11-B Direct Memory Access Interface
It was a [[DEC card form factor|quad]] format card (M7950); connection to the user's devic * ATTN - Attention; signal from user's hardware which can be tested, or cause an [[interrupt]] (below)

3 KB (380 words) - 03:54, 10 June 2020
MSV11-R memory module
The '''MSV11-R''' (M7458) is a [[DEC card form factor|quad]]-height [[QBUS]]/[[Private Memory Interconnect|PMI]] ...o documentation for it. It is not clear if [[Digital Equipment Corporation|DEC]] ever sold that configuration.

6 KB (962 words) - 15:51, 24 December 2021
MSV11-M QBUS memory
The '''MSV11-M''' (M7506) is a [[DEC card form factor|dual]]-height [[QBUS]] [[Dynamic RAM|DRAM]] [[main memory] ...the CPU are shown in normal font, and those which can also be set by the [[hardware]] in ''italics''.

6 KB (988 words) - 21:25, 2 July 2023
MSV11-L MOS Random-Access Memory
The '''MSV11-L''' is a [[QBUS]] [[DEC card form factor|dual]]-height [[Dynamic RAM|DRAM]] [[main memory]] card ( ...] are shown in normal font, and those which can also be set by the board [[hardware]] in ''italics''.

6 KB (926 words) - 14:10, 22 September 2022
MSV11-P MOS Random-Access Memory
The '''MSV11-P''' (M8067) is a [[DEC card form factor|quad]]-height [[QBUS]] [[Dynamic RAM|DRAM]] [[main memory] ...the CPU are shown in normal font, and those which can also be set by the [[hardware]] in ''italics''.

4 KB (600 words) - 21:23, 2 July 2023
Three cycle data break
...n memory]], used on a number of [[List of Programmed Data Processors|early DEC computers]]. ...evice into one shared set within the processor, thereby economizing on the hardware in the device. (Recall that this mechanism was used in an era when gates we

1 KB (235 words) - 22:06, 15 June 2022
DRV11 Parallel Line Unit
...a pair of 16-[[bit]] parallel ports, one input, and one output. It was a [[DEC card form factor|dual]] format card (M7941); it used [[programmed I/O]]. It * REQ B - Request B - Signal from user's hardware which can be tested, or cause an [[interrupt]] (below)

2 KB (373 words) - 19:18, 7 July 2023
DR11-M general-purpose interface
...provided a pair of 16-[[bit]] parallel ports, both output-only. It was a [[DEC card form factor|quad]] format card ('''M7865'''), and used an [[Small Peri * SI - Status In: Signal from user's hardware which can be tested

3 KB (419 words) - 21:19, 24 November 2022
DRV11-WA General Purpose DMA Interface
It was a [[DEC card form factor|dual]] format card (M7651); connection to the user's devic * ATTN - Attention; signal from user's hardware which can be tested, or cause an [[interrupt]] (below)

4 KB (529 words) - 19:12, 2 December 2021
DHV11 asynchronous serial line interface
...and has extended capabilities, including a [[diagnostic]] self-test, and [[hardware]] in-band [[flow control]] support (on both input and output); Physically, the DHV11 consisted of a single [[DEC card form factor|quad]] card, the M3104. It uses four Dual [[Universal Asyn

6 KB (894 words) - 11:33, 17 February 2023
H967 rack
...version of the [[H960 rack|H960 cabinet]], [[Digital Equipment Corporation|DEC]]'s standard 19" wide rack (an industry-wide standard width for rack-mounte ...s, each of which could be further sub-divided into two 5-1/4" spaces. Most DEC gear (e.g. [[BA11 mounting boxes]]) was designed to fit in spaces of these

924 bytes (139 words) - 16:55, 22 April 2024
Systems Concepts
...''' was a company (originally located in San Francisco) which built custom hardware, initially for [[KA10]] [[PDP-10]]s. It was founded by Stewart Nelson and M ...rformance PDP-10 compatible machine, after [[Digital Equipment Corporation|DEC]] cancelled further PDP-10 replacements. The SC-25 was a lower-performance

1 KB (192 words) - 18:53, 21 January 2024
DEC part number
...' (sometimes the first hyphen is omitted). [[Digital Equipment Corporation|DEC]] had a system for their part numbers, such that looking at a part number w ...these numbers are ''not'' 'DEC part numbers', as defined by the applicable DEC specifications (below).

3 KB (363 words) - 16:38, 14 August 2022
PDP-3
...version of the [[PDP-1]]. Supposedly, only one was ever built (and not by DEC). ...s book ''Computer Engineering - A DEC View of Hardware Systems Design'']: "DEC also never built a PDP-3, although one was designed on paper as a 36-bit ma

1 KB (227 words) - 14:48, 10 January 2024
MLP-900
...he right [[microcode]] loaded the MLP could emulate a [[KA10]] faster than DEC's KA10. === From "The Early ISI Years: A Firsthand Account from the Hardware Team" ===

3 KB (477 words) - 15:39, 24 April 2024
PDP-4
| manufacturer = [[Digital Equipment Corporation|DEC]] ...P-4''' was a small computer produced by [[Digital Equipment Corporation]]; DEC's second production computer, and another 18-bit machine, like its predeces

6 KB (775 words) - 20:00, 7 February 2024
DQ11 NPR Synchronous Line Interface
...nsion, the '''DQ11-BB''', provided programmable [[character]] detection in hardware, for functions such as DLE [[stuffing]]. ..., which were installed in a custom 4-slot [[backplane]] [[system unit]] ([[DEC part number]] 70-09467). Installation of the DQ11-AB or DQ11-BB required an

8 KB (1,222 words) - 04:17, 18 February 2023
Grant continuity card
...e 'in' pins to the 'out' pins in the slot. [[Digital Equipment Corporation|DEC]]'s [[UNIBUS]] and [[QBUS]] use them. [[Category: Hardware Basics]]

554 bytes (82 words) - 22:39, 3 December 2021
Port Expander
==Potential hardware problem== ...aid it had been tested and worked with the [[Digital Equipment Corporation|DEC]] AN-10 and [[IMP11-A ARPANET interface|IMP11-A]], and the [[Advanced Compu

6 KB (1,100 words) - 06:47, 23 January 2024
C. Gordon Bell
...important works were his contributions to [[Digital Equipment Corporation|DEC]]'s two most successful computer families, the [[PDP-11]] and the [[VAX]] l He was at DEC for two periods, 1960-1966 and 1972-1983, ending up as DEC's Vice President of Research & Development, with a spell in between as an a

2 KB (254 words) - 00:18, 23 March 2024
Synchronous Backplane Interconnect
.../780/EK-11780-UG-001_VAX-11_780_Hardware_Users_Guide_197902.pdf VAX-11/780 Hardware User's Guide] (EK-11780-UG-001) - the SBI is covered in Section 1.3.2.1, pp * [http://www.bitsavers.org/pdf/dec/vax/780/EK-MM780-TD-001_Translation_Buffer_and_Cache_and_SBI_Control_Techni

3 KB (412 words) - 23:01, 17 March 2023
DEC Semiconductor Chips
[[integrated circuit|Chips]] from [[Digital Equipment Corporation|DEC]]: <div id="ref_11">[11] [http://bitsavers.trailing-edge.com/pdf/dec/semiconductor/1987_Digital_Semiconductor_Databook_Vol_2.pdf Digital Semicon

36 KB (3,420 words) - 05:36, 5 November 2022
M7850 parity controller
...which has different backplane wiring for parity and non-parity memory, no hardware changes are needed to switch from non-parity to parity memory with the M785 ...850 is a [[DEC card form factor|dual]] format card, which plugs into the [[DEC edge connector contact identification|two top (AB) sections]] of the [[Modi

3 KB (434 words) - 00:07, 20 April 2024
THE VAXORCIST
and the hardware is slowly being backlit by a pulsing red light. A peal of printing backwards... yes... miscellaneous hardware flying through the air...

15 KB (2,569 words) - 08:21, 20 May 2022
UNIX Third Edition
...to have run on the [[PDP-11/45]] model of the PDP-11: "it depends on what hardware is present ([[KE11-A Extended Arithmetic Element|EAE]], [[FP11-B Floating-P ...fy the preparation of object programs for systems which have no relocation hardware." ([http://squoze.net/UNIX/v3man/man1/reloc reloc (I)])

4 KB (674 words) - 03:58, 20 October 2023
UNIX Second Edition
...UNIX had a KS11 - "the current system, which has relocation and protection hardware". ([http://squoze.net/UNIX/v2man/man5/core core(V)]) ...ant to realize that not all the machines running UNIX would have had their hardware updated simultaneously: e.g. the patent group's -11/20 would not have neede

5 KB (926 words) - 03:54, 20 October 2023
VAX-11/750 & VAX-11/751 Revision Control
3.1 Kernel Identification Register Hardware 11/750 system for purposes of identifying the compatible hardware,

101 KB (10,182 words) - 14:04, 2 July 2022
Maintenance Documentation Service
'''DEC MDS''' = [[Digital Equipment Corporation|DEC]] Maintenance Documentation Service * '''DEC-O-LOG'''s (DEC Hardware Service Instructions about '''FCO'''s (see below)

931 bytes (118 words) - 02:55, 17 January 2023
VAXcluster
DEC VAXclusters were introduced with VMS V3.0 in 1982. ...ce through site redundancy. This concept is based on duplicating critical hardware and software components of a VAXcluster configuration in two distinct and w

13 KB (1,908 words) - 19:25, 27 April 2024
CI750 Computer Interconnect Interface
...avers.org/pdf/dec/vax/handbook/VAX_Hardware_Handbook_Volume_1_1986.pdf VAX Hardware Handbook Volume 1] - the CI750 is covered in some detail in Chapter 11 (pp. * [http://bitsavers.org/pdf/dec/vax/750/MP01647_CI750_198307.pdf CI750 Field Maintenance Print Set] (MP0164

1 KB (225 words) - 09:31, 27 February 2023
CPU/Memory Interconnect
...avers.org/pdf/dec/vax/handbook/VAX_Hardware_Handbook_Volume_1_1986.pdf VAX Hardware Handbook Volume 1] - the CMI is covered in Chapter 9 (pp. 316-321 of the PD [[Category: DEC Buses]]

3 KB (393 words) - 22:01, 3 June 2022
NCP DECnet/VAX V1.3
LINKS FOR LOCAL AS OF 7-DEC-1980 13:26:50.69 COUNTS OF LOCAL, AS OF 7-DEC-1980 13:30:46.24

28 KB (3,686 words) - 19:40, 16 November 2023
VAX Bus Interconnect
...erconnect|CMI]], which was [[tri-state]]). [[Digital Equipment Corporation|DEC]] produced a custom [[integrated circuit|IC]] to interface to the VAXBI, im ...avers.org/pdf/dec/vax/handbook/VAX_Hardware_Handbook_Volume_2_1986.pdf VAX Hardware Handbook Volume 2] - the VAXBI is mentioned on page 1-5 (pg. 14 of the PDF)

3 KB (440 words) - 04:46, 13 January 2024
Computer Interconnect
...fairly short-range [[local area network|LAN]]; it was the first element of DEC's [[System Communication Architecture]] to be implemented. ...widely-deployed [[VAXcluster]]. [[Acknowledgement]]s are provided by the [[hardware]]; if one is not received, a [[retransmission]] can be performed.

3 KB (442 words) - 14:50, 1 May 2024
VAX-11/730 Revision Control
identify the compatible hardware, software, diagnostics and firmware Revision Matrix (DEC Standard 068) will be implemented for all 11/730

38 KB (3,857 words) - 14:02, 2 July 2022
RA92 disk drive
...onnect]] [[non-removable-media disk]] from [[Digital Equipment Corporation|DEC]]. It is member of the [[Digital Storage Architecture]] family. It was inte The RA92 can also be connected in a dual-[[hardware port|port]] arrangement, permitting its use by two [[device controller|cont

1 KB (148 words) - 03:14, 31 August 2023
VAXELN
The precise timing and hardware usage requirements of these applications usually require features not provi [[Category: DEC Operating Systems]]

2 KB (349 words) - 22:22, 28 June 2022
Installing Ultrix V1.1 on SIMH
VAX 11/780, serial no. 1234, hardware level = 7 VAX 11/780, serial no. 1234, hardware level = 7

36 KB (4,892 words) - 18:40, 3 July 2022
VAX-11/785 Revision Control
DEC Standard 068. products that will be converted to DEC Standard 012 and 068 over time.

118 KB (7,116 words) - 14:05, 2 July 2022
VAX-11/780 & VAX-11/782 Revision Control
4.1 Part Revision - DEC Standard 012 the VAX 11780 hardware, the VAX 11780 MICROCODE, the VAX DIAGNOSTICS

70 KB (7,782 words) - 14:04, 2 July 2022
KA785 CPU
It was implemented with a large group of [[DEC card form factor|hex]] cards: ...ax/785/EK-11785-UG-PRE_VAX-11_785_Hardware_Users_Guide_1984.pdf VAX-11/785 Hardware User's Guide] (EK-11785-UG-PRE)

2 KB (205 words) - 16:36, 1 July 2022
Advanced Installation of Ultrix V2.0 on SIMH
VAX 11/785, serial no. 1234, hardware level = 23 3 ULTMOP020 DEC Maintenance Operations Protocol

73 KB (9,059 words) - 20:56, 22 May 2023
Setting Up RIS on ULTRIX V2.0
3. You must know the clients hardware ethernet address Type the client processor's hardware ethernet address, for

32 KB (4,724 words) - 22:56, 7 July 2022
Digital Storage Architecture
...e acronym, '''DSA''') is one of the building blocks of [[Digital Equipment|DEC]] computer system architectures. ...to access the communications mechanism for those purposes. The software to hardware interface is referred to as the port "access protocol."

6 KB (698 words) - 21:26, 18 August 2023
BA40A Expansion Adapter
[[Category: DEC Hardware]]

1 KB (161 words) - 22:54, 26 March 2023
DHT32 Asynchronous Serial Line Option
...connect to the rear of the system unit, as explained in the MicroVAX 2000 Hardware Installation Guide (EK-MVXAA-IG). [[Category: DEC Optional Serial Interfaces]]

3 KB (446 words) - 20:41, 16 August 2022
Hierarchical Storage Controller
...evice controller|controllers]], created by [[Digital Equipment Corporation|DEC]] for use in [[VAXcluster]] system. They were connected to the [[VAX]] syst ...un, the official software name was '''[[HSC Software|HSC]]''' (same as the hardware), the project name, '''[[HSC Software|CRONIC]]''' (Colorado Rudimentary Ope

3 KB (489 words) - 16:58, 22 April 2024
HSC50 Hierarchical Storage Controller
...''' and '''HSC50 Mass Storage Server''' in [[Digital Equipment Corporation|DEC]]'s documentation) is an intelligent [[mass storage]] sub-system [[server]] * [http://www.bitsavers.org/pdf/dec/dsa/hsc/EK-HSC50-UG-002_HSC50_Users_Guide_Aug84.pdf HSC50 User Guide] (EK-H

9 KB (1,370 words) - 23:47, 28 December 2023
KDA50 disk controller
...n a QBUS [[backplane]] of a [[PDP-11]] or [[VAX]], and associated mounting hardware and cables. Dual [[microprocessor]]s on one of the cards execute independen ...ith each other by means of two [[over the back]] [[flat cable]]s. Mounting hardware for the cables to the drives consists of locating brackets and bulkhead con

6 KB (888 words) - 10:56, 31 August 2023
VAXstation 100 firmware notes
Some random notes from running the [[Digital Equipment Corporation|DEC]]-supplied standard [[firmware]] for the [[VAXstation 100]] in an emulator. | Mouse x,y copied from hardware register

9 KB (1,261 words) - 08:50, 27 February 2024
Standard Drive Bus
...the lowest, [[hardware]] level of several [[Digital Equipment Corporation|DEC]] designed [[mass storage]] [[drive]] to [[device controller|controller]] i ...ntroduced (in 1981) because no existing standard had the capabilities that DEC deemed necessary in the mass storage arena. It is part of the [[Standard Di

2 KB (301 words) - 12:59, 19 April 2024
MicroVMS
* Hardware restrictions DEC called MicroVMS "retired" from VMS 5.0 onwards

2 KB (337 words) - 18:00, 13 January 2024
VCB02 Video Controller
...ble address size|Q22]] version of the QBUS, and consisted of a number of [[DEC card form factor|quad]]-height modules. ...tween the 4/8 Plane Color and Mono versions are the bulkhead assemblies; [[DEC part number]]s:

3 KB (477 words) - 18:58, 15 January 2024
VCB03 Video Controller
...supports 1280 by 1024 [[resolution]] at 66 Hz [[display refresh]] rate, 3D hardware acceleration and (when fully configured) 24-bit true color. it also support * [http://www.bitsavers.org/pdf/dec/vax/ultrix-32/4.0_Jun90/AA-LY17B-TE_ULTRIX_4.0_Reference_Pages_Section_4_Sp

2 KB (290 words) - 10:21, 17 April 2024
The VMS-MicroVMS Merge
The introduction of MICROVAX hardware opened new markets for VAX/[[VMS]]. A VAX/VMS system cost less than $20,000 Hardware, software, documentation and customer input seemed to indicate that MICROVM

21 KB (3,330 words) - 03:40, 16 January 2024
KS11 Memory Protection and Relocation option
...tandard, so the KS11 became obsolete.) It was almost certainly produced by DEC's Computer Special Systems group. ==Hardware registers==

5 KB (754 words) - 17:58, 29 February 2024
VAX 85x0, 8700, 88xx, and 897x systems
...n three different model designations VAX 85xx, VAX 8700, and VAX 8800, the DEC internal superordinate name was "VAX 8800 Family" from the beginning: All three came complete with Cluster hardware, storage devices, and software.

6 KB (844 words) - 22:15, 29 April 2024
VAX 8500/8530/8550 Revision Control
| 3-0 - 3-2 System Hardware History............................... 17 - 20... ...|7023098-MK001 A1 B1 Change Hardware Thread Type and Assembly |

233 KB (10,381 words) - 20:20, 22 May 2023
VAX 8700/8810 VAX 8800/8820N Revision Control
| 3-0 System Hardware...................................... 17-19... | 3-5 87XBA Basic Hardware Group........................... 24...

239 KB (10,046 words) - 20:25, 22 May 2023
VAX 8820/8830/8840 Revision Control
| 3-1 System Hardware History.............................. 15 | | 7024617 -01/02/03 A4 B4 Hardware change |

170 KB (7,189 words) - 20:26, 22 May 2023
Datapoint
...originally notionally a programmable [[video terminal]] (so that a single hardware design, with appropriate [[firmware]], could emulate many different kinds o ...ors as too grandiose (the same reason that [[Digital Equipment Corporation|DEC]] initially manufactured [[List of Programmed Data Processors|Programmed Da

3 KB (379 words) - 04:59, 2 June 2023
Running ITS (the Incompatible Timesharing System) on the KL-10
...is purpose, we intend to employ the "Murphy mode" or "KL-10 paging" mode [[hardware]] mechanism in the KL-10 [[Central Processing Unit|processor]]. ...normal [[instruction]]" when all required mapping data is found within the hardware pager memories.

23 KB (3,961 words) - 17:58, 5 January 2024
SUMEX-AIM
...EX]], expanded to two, and eventually replaced the earlier hardware with a DEC-20 running [[TOPS-20]]. It was available on both [[ARPANET]] and [[Tymnet]

828 bytes (106 words) - 10:23, 10 January 2024
Installing ULTRIX-11 V1.0 on SIMH
Wed Dec 31 19:02:20 EST 1969 Wed Dec 31 19:32:43 EST 1969

33 KB (4,919 words) - 12:31, 21 June 2023
DEC Software-related Order Codes
DEC Software Media, Software License, Software Service, and Software Manual Ord '''3rd to 5th Letter = [[DEC Unique Product Identifier| Unique Product Identifier]] (UPI)'''<br>

6 KB (972 words) - 17:56, 25 April 2024
CTI BUS
...used on the [[Professional 300 Series]] of [[Digital Equipment Corporation|DEC]] [[PDP-11]] personal computers solely. It seems to be a variant form of a ...n any available option slot. Each option module can generate two different hardware interrupt signals. When an option is in place, an option-present signal is

1 KB (150 words) - 09:02, 30 June 2023
DEC mounting boxes
...pment Corporation]] produced a selection of [[mounting box]]es (mechanical hardware) to hold [[backplane]]s (and the [[printed circuit board]]s which plugged i ...use of problems, or [[voltage]] drops, caused by the [[connector]]s in the DEC power distribution connector system.)

1 KB (203 words) - 05:16, 14 February 2024
RD51/52/53 Survival Tips
the first item should be to check the integrity of the hardware and Next check the rev levels of all the hardware, RQDX1 controllers

9 KB (1,560 words) - 17:49, 5 January 2024
PDP-2
...Books/Bell-ComputerEngineering.pdf ''Computer Engineering - A DEC View of Hardware Systems Design'']

293 bytes (43 words) - 02:43, 16 January 2024
CASINO
...early, one-of-a-kind computer built out of [[Digital Equipment Corporation|DEC]] [[System Module]]s by Scientific Engineering Institute (which later becam ...rEngineering.pdf Gordon Bell's book ''Computer Engineering - A DEC View of Hardware Systems Design'']:

7 KB (1,205 words) - 15:22, 27 January 2024
VAX Diagnostic Supervisor
...abbreviated to VAX/DS) is a set of diagnostic software programs for the [[DEC]] [[VAX]] computers and peripheral devices. That's what they must have thought at DEC when they developed their diagnostic software.

24 KB (3,367 words) - 08:59, 4 April 2024
Professional 300 Series
...PDP-11]]-based [[personal computer]]s from [[Digital Equipment Corporation|DEC]]. The hardware layout is somewhat different: the first 512KB of memory resides on the syst

5 KB (681 words) - 16:37, 5 January 2024
R215F
...ven.com/images/d/d9/EK-249AC-AD-003.pdf R215F Expander Addenda to Customer Hardware Information] (EK-249AC-AD-003) [[Category: DEC Mass Storage]]

2 KB (237 words) - 12:45, 8 September 2023
Software Product Description
..., terms of use and licensing. An SPD defines the legal framework for using DEC software such as the technical prerequisites and guaranteed characteristics * MINIMUM HARDWARE REQUIRED

2 KB (304 words) - 21:55, 29 September 2023
VT36 Color Graphics Display Control System
...ipment is a new approach to color display systems. Developed as a complete hardware and software package, the VT36 supersedes conventional display systems by p The VT36 comprises a complete hardware and software package to create pictures and link them dynamically to areal

16 KB (2,398 words) - 12:26, 27 February 2024
Edited Option/Module List
...ensive document type regarding hardware and software made and/or sold by [[DEC]]. * [http://www.brouhaha.com/~eric/retrocomputing/dec/doc/oml/eoml-1991.06.13.zip June 1991]

1 KB (183 words) - 22:31, 1 October 2023
Common File System
[http://bitsavers.org/pdf/dec/pdp10/TOPS20/V7/MGR_GUIDE.MEM.txt TOPS-20 System Manager's Guide June 1990 explains in detail how the '''Common File System''' (CFS) works on the [[DEC]] [[PDP-10]], [[DECSYSTEM-20]] computer running the [[TOPS-20]] operating s

53 KB (6,770 words) - 13:15, 16 November 2023
ITS 138
==Supported hardware== * DEC Type 555 "[[DECtape|microtapes]]" with data channel.

5 KB (675 words) - 08:28, 19 January 2024
BBN Pager
...dware to their KA10 for the same purpose). [[Digital Equipment Corporation|DEC]] had provided only basic [[memory management]] capabilities on the KA10 -

3 KB (457 words) - 15:38, 6 January 2024
CompuServe recollections
I have no docs but I have examples of a Qbus "Trinode" (3 9-slot DEC-made Qbus backplanes + 3 sets of boot/halt buttons), some of the console wi ...custom 16-port mux boards, but it was just higher-density versions of the DEC ancestors.

5 KB (817 words) - 06:56, 20 February 2024
ITS machine configurations
* a collection of other DEC early memory boxes ([[MA10]]'s and/or [[MB10]]'s) totalling 256KW The [[KS10]]'s were all pretty stock, hardware-wise; like the KL10, they also ran custom microcode. Also:

6 KB (863 words) - 15:11, 24 April 2024
Memory Test Computer
..., J. Craig Mudge, John. E. McNamara, ''Computer Engineering: A DEC View of Hardware Systems Design'', Digital Press, Bedford, 1978 - contains some detail about

6 KB (932 words) - 22:10, 1 March 2024
VAX 8200/8300 Revision Control
| 3-0 CPU Hardware................................................ 13... | Revision levels are tracked according to DEC Standard 068....

198 KB (5,881 words) - 23:03, 28 March 2024
H95xx-H96xx Series of DEC Cabinets and Accessories
...series of cabinets and accessories''' from [[Digital Equipment Corporation|DEC]] is a flexible modular system for housing computers and [[peripheral]]s; t Benefits for collectors of DEC hardware:

13 KB (1,855 words) - 17:45, 12 April 2024
HSC70 Mass Storage Server
...[mass storage]] sub-system [[server]] from [[Digital Equipment Corporation|DEC]], the second in their [[Hierarchical Storage Controller]] series (after th ...a passive, [[RF]]-[[transformer]] coupling network). The HSC was the first DEC mass storage server to connect to multiple hosts. The [[Mass Storage Contro

3 KB (503 words) - 20:40, 19 April 2024

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