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• KD11-E/EA microcode
  ...cal. (The KD11-EA contains additional microcode associated with the [[FP11-A Floating-Point Processor]], which is not covered here.) ...son for the change is unknown. Also, a dump of the KD11-EA microcode gives a different 'next microinstuction', from that given in the prints, for microi
  31 KB (3,760 words) - 05:02, 5 November 2022
• Installing 4.0 BSD on SIMH
  * You will need a working copy of SIMH's vax780.exe for your platform. * A 4.0 BSD install tape. You can download one from [http://sourceforge.net/pr
  5 KB (848 words) - 07:12, 2 February 2016
• 4.0 BSD boot
  I wish I could upload binaries. until then use [[uudecode]] to get a working boot program. M``#:'Q+0CP``!P!>T`&?!&``(-"?`&``(%#3CP```0!0$_#0[U<4``!0U(#1
  9 KB (1,962 words) - 02:44, 25 December 2018
• Bug fixes and changes in 4.1bsd
  been substantially improved by correcting a problem Processes which are known to need only a small amount
  39 KB (5,307 words) - 05:01, 11 December 2018
• Xv6 homework 4
  ...e. Please write up your answers to the exercises below and hand them in to a 6.828 staff member at the beginning of lecture. sh-3.00$ wget -q http://pdos.csail.mit.edu/6.828/2006/src/xv6-rev0.tar.gz
  5 KB (735 words) - 15:55, 30 December 2018
• Compiling KLH10
  ...]] Gentoo machine with 2GB RAM and gcc 4.5.3-r1. The author currently has a bad cold, so please excuse any mistakes/foolishness caused by light-headedn ...2012. The system has been configured as a 'multilib' configuration, with a mixture of 32- and 64-bit. By default, gcc compiles for 64-bit.
  7 KB (1,201 words) - 06:26, 16 December 2018
• Inside OS/2
  A Division of Microsoft Corporation Although a book can have a single author, a work such as OS/2 necessarily
  627 KB (92,395 words) - 03:42, 17 December 2018
• Installing 2.9 BSD on SIMH
  This is probably a little extreme, but it does work. ...ape image, with the files found on the TUHS archive. Alternatively I have a pre-made tape [http://sourceforge.net/projects/bsd42/files/Install%20tapes/
  6 KB (835 words) - 13:57, 29 May 2020
• Installing Ultrix 4.5 on SIMH
  This WORK-IN-PROGRESS guide will be a simple guide to installing [[ULTRIX]] 4.5 for VAX on [[SIMH]]. The following is a list of things required for installation
  44 KB (6,192 words) - 09:30, 29 September 2023
• Upgrading QBUS backplanes
  ...F1 (BDAL18-BDAL21, respectively) on all '''''QBUS''''' slots together into a bus. So one wires BC1 on slot 1 to BC1 on slot 2, slot 3, etc, etc. ...n't run the extra BDAL lines to the C/D connectors, bur rather only on the A-B connectors wired for QBUS (which run down the left-hand side, when facing
  3 KB (601 words) - 02:11, 10 July 2023
• LSI-11
  ...-11.jpg|250px|thumb|right|M7264 KD11-F board (etch revision F), with KEV11-A]] The LSI-11 is a [[DEC card form factor|quad]] board (M7264) with additional functionality o
  3 KB (411 words) - 22:06, 20 December 2023
• QBUS memories
  ...ds are available both from [[Digital Equipment Corporation|DEC]], and from a large number of outside vendors who produced and sold QBUS [[main memory]] Note that although Q18 memory cards can be plugged into a Q22 machine (e.g. most [[PDP-11/23]]'s, and all [[PDP-11/73|-11/73]]'s), an
  5 KB (835 words) - 02:21, 20 September 2022
• 3BSD bootsector
  I wish I could upload binaries. until then use [[uudecode]] to get a working boot program. M``#:'Q+0CP``!0!>T`&?!``!(-`!GP0@`2#0`9\$8``@PX_D%@4`CY@Y!0!0
  8 KB (1,828 words) - 02:37, 25 December 2018
• Installing 4.1 BSD on SIMH
  * You will need a working copy of SIMH's vax780.exe for your platform. * A modified 4.1 BSD install tape. You can download one from [http://sourcefor
  7 KB (1,100 words) - 07:32, 2 February 2016
• Installing 4.1c BSD on SIMH
  You will need the following materials to put together a 4.1c BSD installation: *A working zip tool to extract .zip files
  13 KB (2,077 words) - 16:30, 7 August 2017
• Clearpoint Q-RAM 11
  ...arpoint Q-RAM 11''' is a 512 Kbyte [[QBUS]] [[main memory|memory]] card in a [[DEC card form factor|quad]] QBUS card-size format, using 64Kx1 DRAMs. ...s four banks (i.e. it has a 9x4 array of xx64 64Kx1 chips; i.e. to provide a 16 bit wide bank of 128 Kbytes, plus byte parity, there are four groups of
  2 KB (352 words) - 02:52, 14 December 2020
• Small Peripheral Controller
  ...slot, occupying [[DEC edge connector contact identification|rows C-F]] in a hex slot. ...e Reader/Punch Control|PC11]] (M781), the [[DR11-A parallel interface|DR11-A]] (M786), and the [[CR11 Controller|CR11]] (M829).)
  5 KB (868 words) - 23:38, 9 April 2022
• DEC alphabet
  A,B,C,D,E,F,H,J,K,L,M,N,P,R,S,T,U,V I.e. leaving out 'G', 'I', 'O' and 'Q', which when poorly printed might be mistaken for '0', '1', etc.
  720 bytes (132 words) - 15:42, 8 August 2023
• SS-50 bus
  ...instead of the 16 in the original. It was designed for the [[STWPC S/09]], a paged-memory 6809 system. The bus is made by a sequence of Molex connectors, with pins on the motherboard. The extension b
  6 KB (1,084 words) - 16:55, 16 February 2024
• Private Memory Interconnect
  ...CPU]]. It also provides means for the [[Central Processing Unit|CPU]] and a [[KTJ11-B UNIBUS adapter|KTJ11-B]] [[UNIBUS]] adapter to communicate in pro ...ct Memory Access|DMA]] cycles (mapped to the full 22-bit address space via a [[UNIBUS map]]), and to interrupt the CPU.
  4 KB (731 words) - 17:11, 6 February 2024

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