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• QED (text editor)
  .... Peter Deutsch]] (of [[Ghostscript]] fame) for the [[Berkeley Timesharing System]] running on the [[Scientific Data Systems|SDS]] [[SDS 940|940]]. It was im ...ce been written for many other systems, including [[CTSS]], [[Multics]], [[UNIX]] and various NORD computers.
  3 KB (441 words) - 15:24, 18 July 2023
• UNIX file system
  The '''UNIX file system''' was one of the first [[file system]]s to internally completely separate [[directory|directories]] (the catalog ...es (visible to users) to inode numbers (used internally by the [[operating system]], and generally not visible to users).
  7 KB (1,147 words) - 14:34, 14 June 2023
• BDV11 Bus Terminator/ROM
  So if you start some [[operating system]] which enables the KW11-L (e.g. [[UNIX]]), and then try and re-boot it by halting the machine and using the 'Go' c ...out error on the BDV11 which can cause damage if a BDV11 is plugged into a system with the optional -12V on pin AB2. The trace which is supposed to connect b
  4 KB (672 words) - 02:01, 10 July 2023
• Chaosnet
  ...N was a [[Carrier-Sense Multiple Access with Collision Detection|CSMA-CD]] system modeled on the [[Xerox PARC]] 3 megabit/second Experimental [[Ethernet]], r ...ersonal workstations developed to run LISP). It was a local network (about 1-2 km cable lengths), without central control (thus “chaos”). It was...
  8 KB (1,211 words) - 16:55, 10 April 2024
• Able ENABLE
  ...ical in function to the PAR's of the standard [[PDP-11 Memory Management]] system, but had different addresses from the ones built into the CPU. (The ENABLE ...ve the native PARs untouched, using only the ABLE PARs, as the [[operating system]] ran.
  9 KB (1,569 words) - 15:47, 6 February 2024
• Running UNIX V6 on an -11/23
  It is possible to run [[UNIX Sixth Edition]] on a [[PDP-11/23]] (provided 'of course' that it has a [[KT ...ng V6 to do these; bringing it up under a [[simulator]], e.g. [[Installing UNIX Sixth Edition on Ersatz-11]], is therefore essentially required.
  6 KB (1,028 words) - 16:56, 2 June 2022
• TECO
  ...4; it was for a long time the primary editor on [[Incompatible Timesharing System|ITS]]. [[EMACS]] was implemented using TECO's programming facilities. * [http://ana-3.lcs.mit.edu/~jnc/tech/unix/teco teco] - source for MIT V6 UNIX TECO
  2 KB (256 words) - 12:51, 23 April 2024
• SITS
  ...l Incompatible Timesharing System". It was a [[time-sharing]] [[operating system]] for a [[PDP-11/45]], created in the mid-1970s at [[MIT]] for running [[Lo ...ty and the concept of spheres. It has a hierarchical tree-structured file system inspired by [[Multics]]. SITS supported [[raster]] [[display]]s similar to
  7 KB (1,015 words) - 22:43, 15 March 2024
• Old C Changes
  1. Long integers the result is unsigned. Thus, for example `u = -1' results in
  15 KB (2,398 words) - 14:52, 16 January 2023
• RS03/04 disk drive
  | surfaces = 1 (RS03), 2 (RS04) | transfer rate = 2 μsec/byte (RS03), μ1 sec/byte (RS04)
  3 KB (488 words) - 18:37, 14 August 2023
• MINI-UNIX
  ...nix versions from [[UNIX Fourth Edition]] onward). Although it is not full Unix, it retains a large amount of the functionality of the original. ...s a result of the lack of memory management in the machines which run MINI-UNIX; the [[kernel]], and [[user]] commands (as [[process]]es), share a single P
  8 KB (1,243 words) - 21:16, 21 June 2023
• PWB/UNIX
  ...bench') was a variant of early [[UNIX]] (initially [[UNIX Sixth Edition|V6 Unix]]) inside [[Bell Laboratories|Bell Labs]], with minor changes to the [[kern ...WB systems came from within shell scripts). Existing applications, notably UNIX's native [[text processing]] tools, were also heavily used.
  7 KB (1,109 words) - 16:49, 27 September 2023
• PDP-11 C stack operation
  bar(1, a); mov $1,-(sp)
  10 KB (1,556 words) - 19:50, 16 November 2023
• Bolt, Beranek, and Newman
  ...e BBN hired him, was purchased in 1958. It was followed by the first [[PDP-1]] produced by [[Digital Equipment Corporation|DEC]] in 1960; its acquisitio ...the [[BBN Pager]] for the [[KA10]], and produced the [[TENEX]] [[operating system]] for the PDP-10, to support its other computer research.
  2 KB (319 words) - 20:42, 18 March 2024
• VAXstation 100
  ...ochrome Monitor|VR100]] [[display]] (a [[cathode ray tube|CRT]] capable of 1,088x864 [[pixel]]s [[resolution]]) was attached to the display processor mo ..., in addition to the 512K bytes of memory for the bit-mapped display (only 1/4 of that actually drove the display; the rest could be used to hold data s
  4 KB (614 words) - 15:53, 20 March 2024
• USG UNIX
  ...use, on the then-popular [[PDP-11]]. It was created and supported by the [[UNIX Support Group]], which was formed for that purpose. ...974. Soon thereafter, the release naming terminology changed, and 'Generic 1' was the new name for USG Release 2.24; Generic 2 was USG 3.33, in January
  1 KB (183 words) - 04:52, 29 December 2022
• MERT operating system
  ...ing an organizational concept that later became known as a [[microkernel]] system; it was one of the very earliest successful ones. ...l (below) mostly written in [[assembly language]]; the rest (file manager, UNIX supervisor, etc) was in [[C]].
  5 KB (736 words) - 21:56, 29 September 2022
• Installing Ultrix V1.1 on SIMH
  The aim of this tutorial is to show how to install [[Ultrix]] V1.1 on the supported [[SIMH]] [[MicroVAX]] / [[VAX]] [[simulator]]s. * Ultrix V1.1 Mini System
  36 KB (4,892 words) - 18:40, 3 July 2022
• Advanced Installation of Ultrix V2.0 on SIMH
  * Full System * Partitions on two System Disks
  73 KB (9,059 words) - 20:56, 22 May 2023
• Installing and Configuring an ULTRIX V3.0 DMS Server on a SIMH MicroVAX 3900
  1) Dansk (1..15): '''5'''
  80 KB (9,795 words) - 09:39, 10 July 2022

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