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• 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 (317 words) - 04:02, 19 May 2024
• 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 (287 words) - 14:43, 19 May 2024
• 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 (203 words) - 22:15, 19 May 2024
• VAX-11/751
  <div id="ref_2">[2] VAX Hardware Handbook Volume 1 - 1986. </div> [[Category: DEC VAX systems]]
  1 KB (149 words) - 20:59, 19 May 2024
• 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
  <!--| design type = asynchronous with hardware subroutines --> 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
• 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
  *** xx-xxxxx - CIPA Mounting Box ([[DEC part number]] still unknown), containing: ...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.
  2 KB (234 words) - 16:47, 15 May 2024
• 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)
  4 KB (536 words) - 20:40, 23 May 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 (446 words) - 00:41, 24 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
• VAXft series
  ...t tolerant]] [[VAX]] computers produced by [[Digital Equipment Corporation|DEC]]. They used [[redundancy]] to produce reliable operation. ...'), with a 'crosslink cable' running between the CPUs. The cable allowed [[hardware]] in the two CPUs to check, on an [[instruction]]-by-instruction basis, tha
  2 KB (307 words) - 08:39, 13 May 2024
• 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

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