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• Modified UNIBUS Device
  ...that backplane; others carry additional [[voltage]]s (primarily for [[core memory]]). ...y in the C-F connectors (needed for signals for [[interrupt]]s or [[Direct Memory Access|DMA]], for devices which did those), with most UNIBUS signals presen
  4 KB (708 words) - 16:06, 30 March 2023
• KL10
  ...[[core memory]]), 500 nsec (later [[Metal Oxide Semiconductor|MOS]] [[main memory]]) | memory mgmt = [[paging]], 512-word pages
  11 KB (1,737 words) - 13:06, 2 April 2024
• KY11-LB Programmer's Console
  ...ctions of the console, it communicated with the PDP-11 CPU and with [[main memory]] over the [[UNIBUS]]; a pair of additional backplane lines (Halt Request, To enable the extended maintenance functions which the KY11-B can perform, one (-11/04) or two (-1
  7 KB (1,114 words) - 20:56, 24 October 2022
• KDJ11-B CPU
  Its principal improvement over the KDJ11-A is its support of the [[Private Memory Interconnect]] [[bus]], a high-performance variant of the QBUS; it also sup ...ovides a built-in [[asynchronous serial line|serial]] console, [[Read-only memory|ROM]]s to contain diagnostic and [[bootstrap]] programs, and an [[EEPROM]]
  6 KB (1,052 words) - 22:52, 26 July 2024
• NORD-12
  }}The '''NORD-12''' was a slightly slower and memory-limited variant of the [[NORD-10]] ...support the paging option of the NORD-10 and thus the memory could not be extended above 64 kwords
  2 KB (293 words) - 14:06, 7 June 2016
• Extended UNIBUS
  The '''Extended UNIBUS''' or '''EUB''' was [[Digital Equipment Corporation|DEC]]'s name for ...[[DEC card form factor|hex]] slot, and could hold only special EUB [[main memory]] cards, the only EUB cards ever produced. The only machines to support the
  3 KB (556 words) - 16:00, 6 February 2024
• KT11-B Paging Option
  The '''KT11-B Paging Option''' is a [[memory management]] option for the [[PDP-11/20]], produced by [[Digital Equipment ...it made to a page which is not 'resident' (i.e. present in physical [[main memory]]), the [[instruction]] is stopped so the missing page can be made resident
  15 KB (2,571 words) - 22:23, 11 October 2022
• PDP-11 Memory Management
  ...rrrect - the functionality provided is that of segmentation, not [[virtual memory|paging]]). ...ress space can be individually assigned to any location in physical [[main memory]]. Each segment can be set to any length between 0 bytes and 8 Kbytes, in 0
  9 KB (1,320 words) - 19:20, 27 July 2024
• UNIBUS map
  ...w [[Direct Memory Access|DMA]] devices on the UNIBUS access to all of main memory. ...in the [[PDP-11/70]], between the [[Central Processing Unit|CPU]] and main memory.)
  2 KB (310 words) - 04:15, 7 January 2021
• KA11 CPU
  ...only PDP-11 CPU which was not [[microcode]]d (since the cheap [[read-only memory|ROMs]] which make micro-programming cost-effective in smaller machines were The KA11 was implemented as a set of [[DEC card form factor|extended length]] [[FLIP CHIP]]s, containing early [[74 series]] [[transistor-transi
  9 KB (1,356 words) - 23:10, 29 February 2024
• KT11-B Technical Manual
  ...vel internal entities such as the associative memories, and the scratchpad memory. The heart of the KT11-B is the scratchpad memory, which is used to hold both cached [[page table]] entries, and also most of
  31 KB (4,983 words) - 18:22, 2 July 2023
• TM11 magtape controller
  |Current Memory Address Register || MTCMA || 772526 ...PEVN || colspan=3 | Unit Select || CUR || INT ENB || colspan=2 | Extended Memory || colspan=3 | Function || GO
  10 KB (1,388 words) - 02:36, 10 February 2024
• KDF11-U CPU
  [[Image:KDF11-U.jpg|300px|thumb|right|KDF11-U card with [[KTF11-A memory management chip|KTF11-A]] and [[KEF11-A floating point chip|KEF11-A]]]] ...the [[KTF11-A memory management chip|KTF11-A]] [[PDP-11 Memory Management|memory management]] and [[KEF11-A floating point chip|KEF11-A]] [[floating point]]
  6 KB (1,087 words) - 16:16, 6 February 2024
• Running an LSI-11 from UNIX V6
  ...urrent code is somewhat inelegant, since the generic code to recognize the extended interface is currently in the serial line driver (dl.c), and not in the stt * [[Unix V6 kernel memory layout]]
  3 KB (471 words) - 18:25, 2 July 2023
• Microcode
  ...(including internal registers not visible to the programmer) and/or [[main memory]], through the [[Arithmetic logic unit|ALU]] (while selecting which [[opera ...mputer introduced the concept of a '''control store'''; a wide [[read-only memory]] whose outputs directly controlled internal elements of the CPU. (E.g. one
  6 KB (853 words) - 14:25, 22 January 2024
• KE11-F Floating Instruction Set
  ...d Instruction Set]], which allows the [[microcode]] of the basic CPU to be extended. The KE11-F includes its own microcode [[read-only memory|ROM]], which provides an additional 8 bits width of microcode (to control t
  2 KB (246 words) - 02:34, 12 October 2022
• DR11-B parallel interface
  ...' was a [[parallel interface]] for the [[UNIBUS]], one which used [[Direct Memory Access|DMA]] to transfer data to a user device. ..., an overflow in the Bus Address Register does not carry into the Extended Memory bits in the CSR.
  5 KB (766 words) - 03:15, 25 November 2022
• KD11-E CPU
  ...FP11-A]] [[FP11 floating point|floating point]] unit or the [[KK11-A Cache Memory|KK11-A]] [[cache]]; a PDP-11/34 system needed the upgraded [[KD11-EA CPU]] The KD11-E makes heavy use of [[Read-only memory#PROM|PROMs]], to hold the microcode, to control the [[arithmetic logic unit
  5 KB (791 words) - 02:23, 6 December 2022
• KD11-EA CPU
  ...ting point]] ([[FP11 floating point]] type) unit and/or the [[KK11-A Cache Memory|KK11-A]] [[cache]] (it could work with either, or both). ...CPU#Implementation|that of the KD11-E]], except that the 512x4 [[Read-only memory#PROM|PROMs]] of the KD11-E were replaced by 1024x4 [[integrated circuit|chi
  6 KB (1,045 words) - 22:47, 31 March 2022
• Visual C++ 5.0
  /Fe<file> name executable file /FR[file] name extended .SBR file /TP compile all files as .cpp /Zm<n> max memory alloc (% of default)
  7 KB (913 words) - 02:04, 17 December 2018

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