Difference between revisions of "User:Jnc"

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[[Image:jnc.jpg|250px|thumb|right|Me]]
 
[[Image:jnc.jpg|250px|thumb|right|Me]]
  
−
Although I have a wide interest in older computers, I worked with [[PDP-11]]'s ''extremely'' extensively 'back in the day', and consider them perhaps the most elegant [[architecture]] ever devised (the power and flexibility they obtained with only 16-bit wide [[instruction]]s were a revelation when they first appeared), so I started out by focusing on them. I also worked a lot on early [[UNIX]] (whose bang/buck ratio has ''never'' been surpassed, and almost certainly '''never''' will), back when it ''only'' ran on PDP-11's, before it was [[portable]].
+
Although I have a wide interest in older computers, I worked with [[PDP-11]]'s ''extremely'' extensively 'back in the day', and consider them perhaps the most elegant [[architecture]] ever devised (the power and flexibility they obtained with only 16-bit wide [[instruction]]s were a revelation when they first appeared), so I started out by focusing on them. I also worked a lot on early [[UNIX]] (whose bang/buck ratio has ''never'' been surpassed, and almost certainly '''never''' will), back when it ''only'' ran on PDP-11's, before it was [[portable]]. (All of that was in the context of my work on the [[Internet]] - and, yes, it '''''is''''' spelled with a 'I'.)
  
−
For more about me, see my [http://www.chiappa.net/~jnc home page].
+
For more about me, see my [http://www.chiappa.net/~jnc home page]. I joined the project here at the end of November, 2015‎‎, and have been working on it ever since. [https://gunkies.org/w/index.php?title=RK11_disk_controller&oldid=11294 This] seems to have been [https://gunkies.org/w/index.php?title=Special:Contributions/Jnc&dir=prev&limit=500&target=Jnc my first edit].
  
−
Also, I'm an admin here on the CHWiki, so if there are any admin-type tasks you need doing (e.g. deleting a page with a typo in the name; [https://en.wikipedia.org/wiki/Wikipedia:History_merging merging edit histories]; etc) just drop me a line ('''jnc at mit dot edu''').
+
Also, I'm an admin here on the CHWiki, so if there are any admin-type tasks you need doing (e.g. deleting a page with a typo in the name; [https://en.wikipedia.org/wiki/Wikipedia:History_merging merging edit histories]; etc) just drop me a line ('''jnc at alum dot mit dot edu''').
  
 
==Prototypes==
 
==Prototypes==
Line 31: Line 31:
 
===Here===
 
===Here===
  
 +
* [[Special:Preferences|Preferences]] - includes personal edit count
 
* [[User:Jnc/Online|Online]] - Index to things I have put online
 
* [[User:Jnc/Online|Online]] - Index to things I have put online
 
* [https://gunkies.org/w/index.php?title=User:Jnc&action=purge Purge cache] (edit as appropriate)
 
* [https://gunkies.org/w/index.php?title=User:Jnc&action=purge Purge cache] (edit as appropriate)
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[[Electric field]]
 
[[Electric field]]
 
- [[Magnetic field]]
 
- [[Magnetic field]]
 +
- [[Electro-magnetic]]
 
- [[Magnet]]
 
- [[Magnet]]
 
- [[Electron]]
 
- [[Electron]]
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- [[Relay]]
 
- [[Relay]]
 
- [[Fuse]]
 
- [[Fuse]]
 +
- [[Circuit breaker]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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[[Direct current]]
 
[[Direct current]]
 
- [[Alternating current]]
 
- [[Alternating current]]
 +
- [[Three-phase power]]
 
- [[Frequency]]
 
- [[Frequency]]
 +
- [[Phase]]
 
- [[Impedance]]
 
- [[Impedance]]
 
- [[Transformer]]
 
- [[Transformer]]
Line 163: Line 168:
 
- [[Least Recently Used replacement algorithm]]
 
- [[Least Recently Used replacement algorithm]]
 
- [[Recursive acronym]]
 
- [[Recursive acronym]]
 +
<!-- </small> -->
 +
 +
<!-- <small> -->
 +
[[Oscilloscope‎]]
 +
- [[Logic analyzer]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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<!-- <small> -->
 
<!-- <small> -->
−
[[Switch]]
+
[[Chassis]]
 +
- [[Switch]]
 
- [[Fusible link]]
 
- [[Fusible link]]
 +
- [[‎D Subminiature Connector]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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- [[Metal Oxide Semiconductor]]
 
- [[Metal Oxide Semiconductor]]
 
- [[Integrated circuit]]
 
- [[Integrated circuit]]
 +
- [[Liquid-crystal display]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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- [[‎Atanasoff-Berry Computer]]
 
- [[‎Atanasoff-Berry Computer]]
 
- [[ENIAC]]
 
- [[ENIAC]]
 +
- [[Atanasoff-Mauchly controversy]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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- [[Distribution panel]]
 
- [[Distribution panel]]
 
- [[Teletype]]
 
- [[Teletype]]
 +
- [[‎Flexowriter]]
 
- [[Joystick]]
 
- [[Joystick]]
 
- [[Mouse]]
 
- [[Mouse]]
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- [[Binary-coded decimal]]
 
- [[Binary-coded decimal]]
 
- [[Bi-quinary‎]]
 
- [[Bi-quinary‎]]
 +
- [[Decimal]]
 
- [[‎Multiple precision]]
 
- [[‎Multiple precision]]
 
- [[Floating point]]
 
- [[Floating point]]
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- [[DEC edge connector contact identification]]
 
- [[DEC edge connector contact identification]]
 
- [[DEC alphabet]]
 
- [[DEC alphabet]]
 +
- [[MicroNote]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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- [[TU72 Magnetic Tape Drive]]
 
- [[TU72 Magnetic Tape Drive]]
 
- [[‎TU77 Magnetic Tape Transport]]
 
- [[‎TU77 Magnetic Tape Transport]]
−
- [[‎TU79]]
+
- [[‎TU-79 Tape Transport]]
 +
- [[TU79 Magnetic Tape Transport]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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- [[TS04 Tape Transport]]
 
- [[TS04 Tape Transport]]
 
- [[TS05 Tape Transport]]
 
- [[TS05 Tape Transport]]
 +
<!-- </small> -->
 +
 +
<!-- <small> -->
 +
[[TA78 Magnetic Tape Drive]]
 +
- [[‎TA79 Magnetic Tape Drive]]
 +
- [[TA81 Streaming Tape Unit]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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<!-- <small> -->
 
<!-- <small> -->
 
[[HSC50 Hierarchical Storage Controller]]
 
[[HSC50 Hierarchical Storage Controller]]
 +
- [[‎HSC70 Mass Storage Server]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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<!-- <small> -->
 
<!-- <small> -->
−
[[DLV11 asynchronous serial line interface]]
+
[[QBUS asynchronous serial interfaces]]
 +
- [[DLV11 asynchronous serial line interface]]
 
- [[DLV11-E asynchronous serial line interface]]
 
- [[DLV11-E asynchronous serial line interface]]
 
- [[DLV11-F asynchronous serial line interface]]
 
- [[DLV11-F asynchronous serial line interface]]
Line 1,443: Line 1,469:
  
 
<!-- <small> -->
 
<!-- <small> -->
−
[[KM11-A Maintenance Set]]
+
[[KDJ11 PMI/UNIBUS backplane]]
 +
- [[KM11-A Maintenance Set]]
 
<!-- </small> -->
 
<!-- </small> -->
  
Line 1,533: Line 1,560:
 
- [[‎‎DW780 Unibus Adapter]]
 
- [[‎‎DW780 Unibus Adapter]]
 
- [[RH780 Massbus Adapter]]
 
- [[RH780 Massbus Adapter]]
 +
- [[DR780 High-Performance Channel Interface]]
 +
- [[CI780 Computer Interconnect Adapter]]
 
<!-- </small> -->
 
<!-- </small> -->
  
 
<!-- <small> -->
 
<!-- <small> -->
 
[[KA750 CPU]]
 
[[KA750 CPU]]
−
- [[‎KA730 CPU]]
+
- [[FP750 Floating-Point Accelerator]]
 +
- [[‎DW750 Second Unibus Interface]]
 +
- [[UI750 Unibus Interface]]
 +
- [[DR750 General Purpose Interface]]
 +
<!-- </small> -->
 +
 
 +
<!-- <small> -->
 +
[[‎KA730 CPU]]
 
<!-- </small> -->
 
<!-- </small> -->
  
Line 1,560: Line 1,596:
  
 
<!-- <small> -->
 
<!-- <small> -->
−
[[Hierarchical Storage Controller]]
+
[[‎DR32 Device Interconnect]]
 +
- [[Hierarchical Storage Controller]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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===Non-DEC machines===
 
===Non-DEC machines===
 +
 +
<!-- <small> --
 +
[[Difference Engine]]
 +
- [[Analytical Engine]]
 +
- [[Differential analyzer]]
 +
<!-- </small> -->
  
 
<!-- <small> -->
 
<!-- <small> -->
−
[[Analytical Engine]]
 
 
- [[Automatic Computing Engine]]
 
- [[Automatic Computing Engine]]
 
- [[Pilot ACE]]
 
- [[Pilot ACE]]
Line 1,657: Line 1,699:
 
- [[Memory Test Computer]]
 
- [[Memory Test Computer]]
 
- [[Semi-Automatic Ground Environment]]
 
- [[Semi-Automatic Ground Environment]]
 +
- [[AN/FSQ-7]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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- [[Xerox Alto]]
 
- [[Xerox Alto]]
 
- [[Alto-1822 Interface]]
 
- [[Alto-1822 Interface]]
 +
- [[Dover]]
 
<!-- </small> -->
 
<!-- </small> -->
  
Line 1,861: Line 1,905:
  
 
<!-- <small> -->
 
<!-- <small> -->
−
[[XXDP diagnostic package]]
+
[[MACRO-11]]
−
- [[MACRO-11]]
+
- [[Interactive Application System]]
 +
- [[XXDP diagnostic package]]
 
<!-- </small> -->
 
<!-- </small> -->
  
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<!-- <small> -->
 
<!-- <small> -->
−
[[Video game]]
+
[[Computer-aided design]]
 
- [[Terminal emulator]]
 
- [[Terminal emulator]]
 +
- [[Video game]]
 +
<!-- </small> -->
 +
 +
<!-- <small> -->
 +
[[Interim File System]]
 
<!-- </small> -->
 
<!-- </small> -->
  
 
<!-- <small> -->
 
<!-- <small> -->
 
[[X Window System]]
 
[[X Window System]]
−
- [[Computer-aided design]]
 
 
- [[Stanford University Design System]]
 
- [[Stanford University Design System]]
 
<!-- </small> -->
 
<!-- </small> -->
Line 2,005: Line 2,054:
 
- [[‎Media Access Control Address]]
 
- [[‎Media Access Control Address]]
 
- [[Address Resolution Protocol]]
 
- [[Address Resolution Protocol]]
 +
<!-- </small> -->
 +
 +
<!-- <small> -->
 +
[[PARC Universal Packet]]
 +
- [[EFTP]]
 
<!-- </small> -->
 
<!-- </small> -->
  
Line 2,048: Line 2,102:
 
[[Request for Comments]]
 
[[Request for Comments]]
 
- [[Internet Experiment Note]]
 
- [[Internet Experiment Note]]
 +
<!-- </small> -->
 +
 +
<!-- <small> -->
 +
[[Internet service provider]]
 +
- [[‎Relcom]]
 
<!-- </small> -->
 
<!-- </small> -->
  
Line 2,073: Line 2,132:
 
[[Defense Advanced Research Projects Administration]]
 
[[Defense Advanced Research Projects Administration]]
 
- [[Information Processing Techniques Office]]
 
- [[Information Processing Techniques Office]]
 +
- [[Institute for Advanced Study]]
 
- [[SRI International]]
 
- [[SRI International]]
 
- [[Augmentation Research Center]]
 
- [[Augmentation Research Center]]
Line 2,104: Line 2,164:
 
- [[Bitsavers]]
 
- [[Bitsavers]]
 
- [[Living Computer Museum]]
 
- [[Living Computer Museum]]
 +
- [[‎Super Dimension Fortress]]
 
- [[Computer Conservation Society]]
 
- [[Computer Conservation Society]]
 
- [[Centre for Computing History]]
 
- [[Centre for Computing History]]
Line 2,113: Line 2,174:
  
 
<!-- <small> -->
 
<!-- <small> -->
−
‎[[Charles Babbage]]
+
[[‎John Vincent Atanasoff]]
−
- [[C. Gordon Bell]]
+
- ‎[[Charles Babbage]]
 +
- [[John Mauchly]]
 +
- [[Alan Turing]]
 +
- [[John von Neumann]]
 +
<!-- </small> -->
 +
 
 +
<!-- <small> -->
 +
[[C. Gordon Bell]]
 
- [[Seymour Cray]]
 
- [[Seymour Cray]]
 
- [[Douglas Engelbart]]
 
- [[Douglas Engelbart]]
Line 2,125: Line 2,193:
 
- [[Jerry Saltzer]]
 
- [[Jerry Saltzer]]
 
- [[Ken Thompson]]
 
- [[Ken Thompson]]
−
- [[Alan Turing]]
 
−
- [[John von Neumann]]
 
−
 
 
<!-- </small> -->
 
<!-- </small> -->
  
Line 2,285: Line 2,350:
 
- [[VAXstation 4000 Model 96]]
 
- [[VAXstation 4000 Model 96]]
 
- [[VAXstation 8000]]
 
- [[VAXstation 8000]]
 +
<!-- </small> -->
 +
 +
<!-- <small> -->
 +
[[VAXft series]]
 
<!-- </small> -->
 
<!-- </small> -->
  
Line 2,327: Line 2,396:
 
[[Network Control Protocol]]
 
[[Network Control Protocol]]
 
- [[TCP/IP]]
 
- [[TCP/IP]]
 +
- [[Point-to-Point Protocol]]
 
<!-- </small> -->
 
<!-- </small> -->
  

Latest revision as of 21:07, 19 November 2024

Me

Although I have a wide interest in older computers, I worked with PDP-11's extremely extensively 'back in the day', and consider them perhaps the most elegant architecture ever devised (the power and flexibility they obtained with only 16-bit wide instructions were a revelation when they first appeared), so I started out by focusing on them. I also worked a lot on early UNIX (whose bang/buck ratio has never been surpassed, and almost certainly never will), back when it only ran on PDP-11's, before it was portable. (All of that was in the context of my work on the Internet - and, yes, it is spelled with a 'I'.)

For more about me, see my home page. I joined the project here at the end of November, 2015‎‎, and have been working on it ever since. This seems to have been my first edit.

Also, I'm an admin here on the CHWiki, so if there are any admin-type tasks you need doing (e.g. deleting a page with a typo in the name; merging edit histories; etc) just drop me a line (jnc at alum dot mit dot edu).

Prototypes

"μ" - "·" - "•"

Technical Instruction Reference - Maintenance Installation Service Manual - Pocket Service Guide

Illustrated Parts Breakdown - Engineering Drawings - Field Maintenance Print Set

'''xxx''' might refer to:

{{disambiguation}}

<br clear=all>

Useful links

Here

External

Pages I have added

Fundamentals

Architecture - Syntax - Semantics - Identifier - Namespace - Hierarchy

Type - Normalization - Variable - Operand - Operator - Expression - Argument - Tree

Computer - Arbitration - Port - Interface - Address - Address space - Mapping - Network

Electric field - Magnetic field - Electro-magnetic - Magnet - Electron - Electrostatic - Current - Ampere - Voltage - Volt

Conductor - Insulator - Dielectric - Resistor - Capacitor - Inductor - Ground - Contact - Relay - Fuse - Circuit breaker

Direct current - Alternating current - Three-phase power - Frequency - Phase - Impedance - Transformer

Circuit - Signal - Signal return - Ground return - Propagation delay‎

Noise - Interference - Crosstalk - ‎Coaxial cable - Transmission line‎ - Terminator‎ - Single-ended signalling‎ - Differential pair - Fiber optic‎‎

State machine‎ - Least Recently Used replacement algorithm - Recursive acronym

Oscilloscope‎ - Logic analyzer

Components

Chassis - Switch - Fusible link - ‎D Subminiature Connector

Crystal - Electronic - Vacuum tube - Semiconductor - Diode - Transistor

Bipolar - Metal Oxide Semiconductor - Integrated circuit - Liquid-crystal display

Mounting box - Backplane - Connector‎ - Harness - Power harness - Bus bar‎

Power supply‎ - VI conversion - Voltage regulator‎ - Linear power supply - Switching power supply - Buck converter‎ - Amplifier

Analog - Digital - Hardware - Gate - Logic - Registered

Programmable Logic Array - Programmable Array Logic - Gate array - ‎Field-programmable gate array

Gray code - Negative logic - ‎Wired-OR - Serial - Parallel - Transceiver

Encoding - Frequency Modulation‎ - Modified Frequency Modulation‎ - Non Return to Zero - Non Return to Zero Inverted - Phase Encoding - Group Coded Recording - Bit stuffing - Run-length limited coding

Real-time - Synchronous - Asynchronous - Meta-stability - Synchronizer - Arbiter - Clock

Logic family - Resistor-transistor logic‎ - Diode-transistor logic‎ - Transistor-transistor logic‎ - Open collector - Emitter-coupled logic - Tri-state - 74 series

Wire-wrap - Printed circuit board - Etch - Trace - Chip socket‎ - ‎DIP switch - Surface mount

Jumper - Berg connector - Flat cable - Flexprint cable‎‎ - Over the back‎ - Cabinet

Hardware

Computing device - Analog computer - Serial computer - Parallel computer

Notable early computing devices - ‎Bell Telephone Laboratories relay computing devices - Automatic Sequence Controlled Calculator - Selective Sequence Electronic Calculator - ‎Atanasoff-Berry Computer - ENIAC - Atanasoff-Mauchly controversy

Data path - Hardware port - Address bus - Data bus - Front panel‎ - Switch register‎

Inverter - Flip-flop - Register - Shift register - Register file - Buffer - First-In First-Out buffer - Ring buffer

Adder - Arithmetic logic unit‎ - Central Processing Unit - Bus Address Register - Moby

Instruction - Operation code - Fetch - Execute - Single-step - Instruction set - ‎Instruction set architecture

Program Counter - Instruction Register - Processor Status Word - Condition codes

Index register - General register - Pointer - Stack - Stack Pointer - Array - Random access

Pipeline - Superscalar‎ - Vector processing - Out-of-order execution‎‎ - Register renaming‎

Co-processor‎‎ - Floating point processor - Floating point accelerator - Multi-processor - Channel - Front end

Interrupt - Interrupt vector - Trap

Microcode - Firmware

Memory - Main memory - Access time - Cycle time - Memory interleaving - Cache - Multi-port memory - ‎Shared memory

Plug compatible - Backward compatibility‎ - Program compatible

Repairing un-documented MOS memory boards

Architecture

Segment - Memory management‎ - Base and bounds - Protection key‎ - Bank switching‎ - Swapping

Virtual address - Virtual memory - Page table‎ - Page fault - Single-level store

Jump - Conditional branch - Control flow - Loop - Subroutine - No-op - Halt

Object code - Absolute address - Relocatable binary - Symbol table

Load-store architecture - Reduced Instruction Set Computer - Complex Instruction Set Computer - Extended Arithmetic Element - Commercial Instruction Set

Bootstrap - Diagnostic - Device driver - Program compatible - Simulator - Emulator

Input/output - Peripheral - Device controller - Programmed I/O - Direct Memory Access - Bus grant - Bus grant line

Supercomputer - Mainframe - Minicomputer - Workstation - Microcomputer

Microcontroller - Microprocessor - Motherboard‎‎ - Daughter-board

Embedded system‎ - Personal computer - Smart-phone ‎

Devices

Delay line - Williams tube - Core memory - Static RAM - Dynamic RAM - Memory refresh

Secondary storage - Mass storage - Magnetic storage - Drive - Head

Drum - Disk - Fixed-head disk‎ - ‎Removable-pack disk - Non-removable-media disk - RAID - Fibre Channel

Magnetic tape - Magnetic tape drive - Magnetic tape controller

Punched card - Paper tape - Printer - Electrostatic printer - Laser printer

Terminal - Keyboard - Printing terminal - Distribution panel - Teletype - ‎Flexowriter - Joystick - Mouse

Data communication‎‎ - Communication link‎ - Baud rate - Modem - Half-duplex - Full-duplex

Serial line - Asynchronous serial line - Synchronous serial line - Sync character‎‎ - Universal Asynchronous Receiver/Transmitter - Serial interface

20mA current loop serial line interface - EIA RS-232 serial line interface - EIA RS-422 serial line interface - EIA RS-423 serial line interface - ITU V.35 serial line interface

Synchronous Data Link Control - High-Level Data Link Control

Display - Cathode ray tube - Raster - Resolution - Display refresh - Video terminal - Video display - Graphics terminal

Light pen - Cursor - Graphics - Character generator - Vector graphics - Display program‎ - Bit-mapped display - Pixel

Parallel interface - SCSI - Line time clock‎ - Real-time clock‎

Software

Bit - Byte - Word - Octet - Character

Binary - One's complement‎ - Two's complement‎ - Binary-coded decimal - Bi-quinary‎ - Decimal - ‎Multiple precision - Floating point

SIXBIT - RADIX-50 - ASCII - Extended Binary Coded Decimal Interchange Code - ASCIZ

Multi-media - Font

Gray code - Parity - Checksum - Cyclic redundancy check‎ - Error-correcting code

Software - Program - Self-modifying code‎ - Pure code - Optimum programming

Programmer - Debug - Backup

Statement - Conditional - Exception - Condition handler - Unwind

Stack frame - Call stack - Local variable - Structure - List

Programming language - Source code - Assembly language - Macro - Scope

Overlay - Debugger - Compiler - Cross-compiler - Interpreter

Subroutine package - Library - Run-time system - Run-time library‎ - Operating environment

Parser - Garbage collection - Object-oriented‎‎

Job - Process - Thread - Task - System call - Scheduler

Batch operating system - Disk operating system - Single-tasking - Multi-tasking - Time-sharing - Real-time system - Virtual machine

Kernel - Microkernel - Hypervisor‎ - Kernel process

Record - File - File system - Directory - Hard link - Byte stream‎ - Pipe - Flow control

User interface - Graphical user interface - Window - Command processor - Daemon

Application - Editor - Text editor - Screen editor - Image editor‎ - Word processor - Database

Portable - Software port - Open source

DEC hardware

DEC engineering drawing numbers - DEC part numbers - DEC edge connector contact identification - DEC alphabet - MicroNote

System Module - FLIP CHIP details - DEC card form factor - System unit

H960 rack - BA123 Enclosure - BA213 Enclosure - DEC mounting boxes - BA11 mounting boxes - DEC indicator panel

BA11-A mounting box - BA11-C Mounting Box - BA11-D Mounting Box - BA11-E Mounting Box - BA11-F Mounting Box - BA11-K mounting box - BA11-L mounting box - BA11-P card cage

BA11-M mounting box - BA11-N mounting box - BA11-S mounting box

‎SC008 Star Coupler

Remote Switching Control Bus‎ - 861 Power Controller

DEC standard power wire colour coding - DEC power distribution connectors

H720 Power Supply - H742 Power Supply - H765 Power System - H777 Power Supply‎ ‎- H780 power supply - ‎H786 power supply - ‎H7861 power supply - DEC Power Line Monitor

DEC standard modular regulators‎ - H744 +5V Regulator - H745 -15V Regulator - H754 +20V, -5V Regulator

DEC peripherals

MASSBUS - M-bus - Standard Drive Bus - ‎Low End System Interconnect - ‎Standard Tape Interconnect - System Communication Architecture

Computer Interconnect

ReGIS

DECtape - LINC tape

TU16 Tape Transport - TU20 Tape Transport - ‎TU30 Magnetic Tape Transport - TU40 - TU41 - TU70 Magnetic Tape Drive - TU71 Magnetic Tape Drive - TU72 Magnetic Tape Drive - ‎TU77 Magnetic Tape Transport - ‎TU-79 Tape Transport - TU79 Magnetic Tape Transport

TE16 DECmagtape Transport - TS03 DECmagtape Transport - TS04 Tape Transport - TS05 Tape Transport

TA78 Magnetic Tape Drive - ‎TA79 Magnetic Tape Drive - TA81 Streaming Tape Unit

TM78 Magnetic Tape Formatter - TX01 Magnetic Tape Controller - TX02 Magnetic Tape Controller

HSC50 Hierarchical Storage Controller - ‎HSC70 Mass Storage Server

RS08 disk drive - RS64 disk drive - RS03/04 disk drive

RK02/03 disk drive - RP01 disk drive - RP02 disk drive - RP03 disk drive - RP04 disk drive - RX01/02 floppy drive

‎RC25 disk drive - ‎R80 Disk Drive - RA71 disk drive - RA72 disk drive ‎- RA73 disk drive

RZ35 disk drive - RZ55 disk drive

PC04/PC05 High-Speed Paper-Tape Reader/Punch

DEC asynchronous serial line pinout

VT05 Alphanumeric Display Terminal - VT240 Series terminal - VT320

UNIBUS

‎UNIBUS and QBUS termination - Non-Processor Request and Grant - UNIBUS parity‎ - UNIBUS Device Addresses - Floating device address space - ‎Floating device vectors - UNIBUS priority plug

UNIBUS map - BC11A UNIBUS cable‎ - UNIBUS H854 header pinout - DB11-A Bus Repeater

UNIBUS backplanes - DD11 backplanes - ‎DD11-A backplane - DD11-B backplane - DD11-C backplane‎ - DD11-D backplane‎ - DD11-P backplane‎

Small Peripheral Controller - Modified UNIBUS Device - Extended UNIBUS

G727 grant continuity card - G7273 grant continuity card - ‎M930 UNIBUS terminator - M9300 UNIBUS B Terminator - M9302 UNIBUS terminator - M105 Address Selector - M8264 No-SACK Timeout Module - UA11 Unibus Analyzer

UNIBUS memories - MM11-B core memory - MM11-C core memory - MM11-D core memory - MM11-E and MM1-F core memories - MM11-K core memory - MM11-L core memory - MM11-U core memory - MM11-W core memory - MM11-Y core memory

- ‎M7259 Parity Control Module - M7850 parity controller

MS11 32KB MOS memory - MS11-L MOS memory‎‎ - MS11-M MOS memory‎‎ - MS11-P MOS memory - Extended UNIBUS memories

UNIBUS boot ROMs - BM792 ROM - BM873 ROM - M9301 ROM - M9312 ROM

DA11-B DMA UNIBUS Link - DA11-F UNIBUS Window - DW11 UNIBUS-to-LSI-11 Bus Converter - DX11-B System 360/370 Channel to PDP-11 Unibus Interface

KW11-L Line Time Clock - ‎KW11-P Programmable Real-Time Clock - ‎KW11-W Watchdog Timer

KG11-A Exclusive-OR and CRC Block Check Option

RH11 MASSBUS controller

RC11 disk controller - RK11-C disk controller - RP11 disk controller - RL11 disk controller - RX11 floppy disk controller - RX211 floppy disk controller‎

TC11 DECtape controller - TM11 magtape controller - TM02 magtape controller - TM03 magtape controller

VT11 Graphic Display Processor - VS11 Graphic System - VS100

IMP11-A ARPANET interface‎‎ - IMP11-B ARPANET Interface - ‎ANTS/ISI IMP Interface - ‎LH-DH/11 Local/Distant Host Controller - ‎VDH/11 Very Distant Host Controller - Stanford 1822 Interface - UNIBUS Experimental Ethernet interface‎ - Interlan NI1010A/NI2010A Ethernet interface

DR11 parallel interface - DR11-A General Device Interface - DR11-B parallel interface - DR11-C general device interface - DR11-K parallel interface - DR11-L general-purpose interface - DR11-M general-purpose interface - DR11-W Direct Memory Access Interface

KL11 Teletype Control‎ - DL11-W serial line unit/real-time clock option - DL11 asynchronous serial line interface - DC11 asynchronous serial line interface - DH11 asynchronous serial line interface - DJ11 Asynchronous 16-Line Multiplexer - DM11 Asynchronous 16-line Single-Speed Multiplexer - DHU11 asynchronous serial line interface

‎DM11-BA Modem Control Multiplexor - DM11-BB Modem Control Option - DM11 distribution panel - DN11 Automatic Calling Unit Interface - DF11 Communications Line Adapter

DP11-A Synchronous Line Interface‎‎ - ‎DS11 Multiple Line Synchronous Interface - ‎DU11 synchronous serial line interface - DUP11 synchronous serial line interface - DQ11 NPR Synchronous Line Interface - ‎DV11 Communications Multiplexer - DMP11 Synchronous Controller - ‎DMR11 Synchronous Controller

PC11 High-Speed Paper-Tape Reader/Punch Control - CD11 High-Speed Punched Card Reader Control Unit - CR11 Controller - MIT UNIBUS XGP interface - Knight TV system

QBUS

DMA Request and Grant - CD interconnect - Private Memory Interconnect

QBUS backplanes - QBUS peripherals - LSI-11 Bus interface chips - Upgrading QBUS backplanes

H9270 backplane - ‎H9273 backplane - H9276 backplane - TEV11 Terminator - M9047 grant continuity card

QBUS memories - PMI memories - MMV11-A - MSV11-A static MOS memory - MSV11-B MOS memory - MSV11-C MOS memory - MSV11-L MOS Random-Access Memory - MSV11-P MOS Random-Access Memory - MSV11-M QBUS memory - MSV11-Q QBUS memory - MSV11-R memory module - CMV-[25]xx - CMV-[14]000 - MK8022 - National Semiconductor NS23M - National Semiconductor NS23C - Q-RAM 11

QBUS ROMs - ‎REV11 DMA Refresh/Bootstrap/Terminator - BDV11 Bus Terminator/ROM‎ - MRV11-A Read-Only Memory Module - ‎MRV11-B UV PROM-RAM Memory Module - MRV11-C Read-Only Memory Module - MRV11-D Universal Programmable Read-Only Memory

KDA50 disk controller - KFQSA

‎TSV05 Tape Transport Subsystem

VSV11 Graphic System

DRV11 Parallel Line Unit - DRV11-B Direct Memory Access Interface - DRV11-J High-Density Parallel Interface - DRV11-WA General Purpose DMA Interface

QBUS asynchronous serial interfaces - DLV11 asynchronous serial line interface - DLV11-E asynchronous serial line interface - DLV11-F asynchronous serial line interface - DLV11-J asynchronous serial line interface - DZV11 asynchronous serial line interface - DZQ11 asynchronous serial line interface - DHV11 asynchronous serial line interface - DHQ11 asynchronous serial line interface

DMV11 Synchronous Controller - DPV11 synchronous serial line interface - DUV11 Line Interface

MLH-DH/LSI11 Multiple Channel Controller - ‎Digital ETHERNET Q-Bus Network Adapter - DIGITAL Ethernet Local-Area-Network to Q-bus Adapter

MXV11-A Multifunction Option Module - MXV11-B Multifunction Option Module

DEC machines

List of Programmed Data Processors - PDP-4 - PDP-9 - PDP-1-X - PDP-X

Three cycle data break

KLESI Low-End Storage Interconnect

PDP-15 - UNICHANNEL 15 System - MX15-A Memory Bus Multiplexer - MX15-B Memory Multiplexer

PDP-8's

LINC - LINC-8 - PDP-8/S - PDP-8/L - PDP-8/A - PDP-12

OMNIBUS - ‎PDP-8 Memory Extension units - FPP8/A Floating Point Processor - MM8-E Memory System

RF08 disk controller - DF32 disk controller - RL8-A disk controller

TC01 DECtape Control - TC08 DECtape Controller - ‎TD8-E Simple DECtape Control

PDP-10's

PDP-10 Memory Bus - PDP-10 I/O Bus

PDP-6 - KA10 - KI10 - KL10 - KS10

MCA20 Cache - MCA25 KL Cache/Paging Upgrade - DMA20 Memory Bus Adapter‎ - DIA20 IBus Adapter‎ - DTE20 Ten-Eleven Interface‎

‎BBN Pager - ‎SC-40

PDP-10 memories‎‎ - MA10 core memory - MB10 core memory - MD10 core memory - ME10 core memory - MF10 core memory - MG10 core memory - MH10 core memory

MA20 core memory - MB20 core memory - MF20 MOS memory - MG20 MOS memory

DF10 Data Channel‎ - ‎DX10 Data Channel - MX10 Memory Multiplexer

RH10 MASSBUS controller‎ - DX20 Programmed Device Adapter

DA10 Twelve- and Eighteen-Bit Computer Interface

CI20 Computer Interconnect - ‎NIA20 Network Interconnect Adapter

‎DN87/DN87S Universal Synchronous/Asynchronous Communications Front End Subsystem

RP10 disk controller

TD10 DECtape Control

PDP-11's

PDP-11 Extended Instruction Set - FP11 floating point - FIS floating point - PDP-11 Commercial Instruction Set - PDP-11 Memory Management - PDP-11 stacks - PDP-11 family differences appendix

KA11 CPU - KC11 CPU - KY11-A Programmer's Console‎‎

‎KS11 Memory Protection and Relocation option - KT11-B Paging Option - KA11 changes for the KT11-B - KT11-B Technical Manual - KT11-B Major State circuitry

PDP-11/05 - PDP-11/40E - PDP-11/34A - PDP-11/74

KB11-A CPU - KB11-B CPU - KB11-C CPU - KB11-D CPU

KD11-A CPU - KD11-B CPU - KD11-D CPU - KD11-E CPU - KD11-EA CPU - KD11-K CPU‎ - KD11-Z CPU - KD11-E/EA microcode

KY11 consoles - ‎KY11-D Programmer's Console - KY11-J Programmer's Console - KY11-LA Operator's Console - KY11-LB Programmer's Console - KY11-L to CPU interface ‎- KY11-P programmer's console

KE11-E Extended Instruction Set - KT11-C Memory Management Unit - KT11-D Memory Management Unit - KJ11-A Stack Limit Register

KE11-F Floating Instruction Set - FP11-A Floating-Point Processor - FP11-B Floating-Point Processor - FP11-C Floating-Point Processor - FP11-E Floating Point Processor - FP11-F Floating-Point Processor

KE11-A Extended Arithmetic Element - KE11-B Extended Arithmetic Element

‎KE44-A Commercial Instruction Set Processor

KK11-A Cache Memory - KK11-B Cache Memory

KDJ11 PMI/UNIBUS backplane - KM11-A Maintenance Set

MS11 Semiconductor Memory System - MJ11 memory system - MK11 memory system - MS11-K MOS memory

LSI-11 chip set‎‎ - LSI-11 CPUs - LSI-11 - LSI-11/2 - KEV11-B Extended Instruction Set‎ - KEV11-C Commercial Instruction Set‎ - KUV11 Writeable Control Store‎

T-11 chip

F-11 chip set - KDF11 CPUs - KDF11-U CPU - KDF11-U CPU pinout - KTF11-A memory management chip - KEF11-A floating point chip - KEF11-B‎ CIS chip - FPF11 floating point processor‎ - KT24 UNIBUS map option

FPJ11 floating point accelerator - KDJ11 CPUs - KDJ11-B CPU - KDJ11-D CPU - KDJ11-E CPU - KTJ11-B UNIBUS adapter - PDP-11/83

QBUS CPU ODT‎‎

RH70 MASSBUS controller - ‎ML11 MOS Memory System

Able ENABLE - Able UNIVERTER

PDP-11 Bootstrap Loader - PDP-11 Absolute Loader

DEC bootstrap device codes

VAXen

VAXserver - VAXstation

Synchronous Backplane Interconnect - ‎CPU/Memory Interconnect - VAX Bus Interconnect - ‎Laser System Bus

KA780 CPU‎ - ‎FP780 Floating-Point Accelerator - MS780 Memory System - ‎MA780 Multiport Memory Option - ‎‎DW780 Unibus Adapter - RH780 Massbus Adapter - DR780 High-Performance Channel Interface - CI780 Computer Interconnect Adapter

KA750 CPU - FP750 Floating-Point Accelerator - ‎DW750 Second Unibus Interface - UI750 Unibus Interface - DR750 General Purpose Interface

‎KA730 CPU

‎VAX 8600 series - ‎VAX 10000 series

‎VAXstation I - VAXstation 3100 series - ‎KD32 CPU

VAXserver 3100 series - ‎VAXserver 3300/3400 - VAXserver 3500/3600 - VAXserver 4000 series‎ - VAXserver 4000 Model 300

‎DR32 Device Interconnect - Hierarchical Storage Controller

Alphas

DEC 4000 AXP series

Other manufacturers

Texas Instruments - Fairchild Semiconductor - Intel - MIPS

Systems Concepts - Able Computer - ‎Storage Technology Corporation - ‎Century Data Systems - Seagate Technology - Advanced Computer Communications

Eckert-Mauchly Computer Corporation - Engineering Research Associates - Remington Rand - Control Data Corporation - General Electric - Systems Engineering Laboratories - Gould Electronics - ‎Berkeley Computer Corporation - Xerox - Data General

Leo Computers - English Electric Computers - EMI Electronics - GEC Computers - International Computers and Tabulators - International Computers Limited

‎Symbolics - Datapoint - ‎Interdata ‎ - ‎Compaq - NeXT Computer, Inc

Cisco

Valid Logic Systems

CompuServe - Tymshare - GeoCities

Non-DEC machines

- Automatic Computing Engine - Pilot ACE - DEUCE

Manchester Baby - Manchester Mark I - Ferranti Mark 1

Atlas - GEC 4000 Series

EDVAC - ‎IAS computer - Whirlwind - Memory Test Computer - Semi-Automatic Ground Environment - AN/FSQ-7

UNIVAC I - LGP-30 - Bendix G-15 - Packard Bell PB 250

Burroughs B5000‎ - CDC 6400 - CDC 6600‎

‎GE 600 series - GE-635 - GE-645 - Honeywell 6000 series‎‎

IBM 604 - IBM 650 - IBM 700 series - IBM 701 - IBM 704 - IBM 709

‎IBM 1401 - IBM 1620 - IBM 7000 series - IBM 7030 Stretch - IBM 7070 - IBM 7090 - IBM 7094

Standard Modular System‎ - ‎IBM I/O channel

Data General Nova 3

‎CalComp Model 215 Disk Drive - Trident disk drives

Xerox Graphics Printer - Xerox Alto - Alto-1822 Interface - Dover

CONS - CADR - SUN workstation - Sun-1

Datapoint 2200 - ‎Altair 8800 - Apple IIc - Apple IIGS - IBM PC‎ - IBM-compatible PC

Lear Siegler ADM-3A - Term-Mite ST Smart Terminal

Extended Industry Standard Architecture - Micro Channel architecture - Peripheral Component Interconnect - Storage Module Device

Chips

Intel 1103

Intel 8085 - Intel x86 - Intel 80486‎ - Intel Pentium

Real mode‎ - Protected mode‎ - Triple fault

Motorola M68000 Family - Motorola MC68000 - Motorola MC68030 - Motorola MC68040 - Motorola MC68060

National Semiconductor NS405 and NS455 Terminal Management Processor

UNIX

UNIX Second Edition - UNIX Third Edition - UNIX Fourth Edition

UNIX file system - Repairing early UNIX file systems

UNIX V6 internals - UNIX V6 memory layout - UNIX V6 dump analysis‎‎ - xv6

Installing UNIX Sixth Edition - Upgrading UNIX Sixth Edition - Running UNIX V6 on an -11/23 - Installing UNIX Sixth Edition on Ersatz-11 - Running an LSI-11 from UNIX V6

Installing Unix Seventh Edition

LSX - MINI-UNIX - CB-UNIX - PWB/UNIX - ‎USG UNIX - UNIX/370

MERT operating system

Network UNIX - Digital UNIX

2.10BSD - 2.11BSD - 4.4BSD - BSD Fast File System

PDP-11 C stack operation - UNIX a.out file - Typesetter C - Standard I/O library

Software systems

Compatible Time-Sharing System - OS/360 - ‎CP operating system - ‎ITS Internals Manual - ITS machine configurations - TOPS-10 - TENEX - CAL Time-Sharing System

ELF operating system - MOS operating system - FAT file system

MACRO-11 - Interactive Application System - XXDP diagnostic package

Michigan Algorithm Decoder - ALGOL - BCPL - BLISS - B programming language - DIBOL - FOCAL - ‎PL/I - Java

‎List of emulators - Ersatz-11 - Bochs - PDP11GUI

Computer-aided design - Terminal emulator - Video game

Interim File System

X Window System - Stanford University Design System

TJ-2 - RUNOFF - PostScript - Sketchpad - Vi editor - Epsilon - Mozilla

Hello, world - PLATO - lex - flex

Networking

Communication network - Data network - Circuit-switching - Physical network - Network interface

Broadcast - Multicast

Wide area network‎ - Local area network‎ - Carrier-Sense Multiple Access with Collision Detection‎‎

Switching node - Gateway - Host - Client - Server

Routing architecture‎ - Path selection‎‎ - Routing table‎ - Routing loop - Link state - Routing protocol‎‎

Packet - Datagram - Packet switch - Internetwork - Router - Big-endian - Little-endian

Protocol - Protocol suite - Application protocol - Internetworking layer - Reliable byte stream‎ - End to end

Networking port - Connection - Sequence number‎ - Acknowledgement - Timeout - Retransmission - Host table

CYCLADES

International Network Working Group - TCP and Internet Meetings - ‎TCP and IP bake offs - Internet Engineering Task Force‎

1822 interface - Network Control Program (ARPANET) - Host-to-IMP Protocol‎ - ‎Terminal Interface Processor - Terminal Interface Unit - Port Expander - C Gateway

Digital Data Communications Message Protocol - Packet Radio Network - ‎Media Access Control Address - Address Resolution Protocol

PARC Universal Packet - EFTP

Internet - Internet Protocol - User Datagram Protocol‎ - Transmission Control Protocol - Domain Name System

Interior gateway protocol‎ - Routing Information Protocol‎ - Open Shortest Path First‎‎ - Intermediate System to Intermediate System‎

Exterior gateway protocol‎‎ - Autonomous System‎ - Exterior Gateway Protocol‎‎ - Border Gateway Protocol‎‎ - Nimrod

Telnet - File Transfer Protocol‎‎ - Email - Simple Mail Transfer Protocol‎ - Hypertext Transfer Protocol - World Wide Web - Browser

Hypertext - Hypertext Markup Language‎‎

Request for Comments - Internet Experiment Note

Internet service provider - ‎Relcom

Other

Computer operator - User - Multi-user - End-user

Original Equipment Manufacturer - Field service‎ - Engineering Change Order

Vonada's Engineering Maxims - Backronym

Defense Advanced Research Projects Administration - Information Processing Techniques Office - Institute for Advanced Study - SRI International - Augmentation Research Center - MITRE

Research Laboratory of Electronics - Lincoln Laboratory - Project MAC‎ - MIT Laboratory for Computer Science - MIT Artificial Intelligence Laboratory‎ - MIT Computer Science and Artificial Intelligence Laboratory

Stanford University - Stanford Artificial Intelligence Laboratory - Project GENIE

Bell Laboratories - UNIX Support Group - Bell System Technical Journal

Charles Babbage Institute - Computer History Museum - Bitsavers - Living Computer Museum - ‎Super Dimension Fortress - Computer Conservation Society - Centre for Computing History

IEEE

‎John Vincent Atanasoff - ‎Charles Babbage - John Mauchly - Alan Turing - John von Neumann

C. Gordon Bell - Seymour Cray - Douglas Engelbart - Butler Lampson - J. C. R. Licklider - Gordon Moore - Robert Noyce - Louis Pouzin - Dennis Ritchie - Jerry Saltzer - Ken Thompson

Pages I have substantially upgraded

Dual Inline Package - Random Access Memory

Operating system - Symbolic link

Digital Equipment Corporation - International Business Machines

FLIP CHIP

TU10 magtape drive - TU56 DECtape Transport - TU60 DECasetteTape Transport

RK05 disk drive - RK06/07 disk drive - RL01/02 disk drive - RM02/03 disk drive - RP05 disk drive - RP06 disk drive - RA60 Disk Drive

RX33 Flexible Disk Drive - RX50 dual-diskette drive

RA70 disk drive - RA80 Disk Drive - RA82 disk drive - RM80 Disk Drive

PDP-1 - PDP-5 - DECmate

PDP-8 - PDP-8/I - PDP-8/E

PDP-10 - TM10 Magnetic Tape Control

PDP-11 architecture - UNIBUS - QBUS

PDP-11/04 - PDP-11/05 - PDP-11/10 - PDP-11/24 - PDP-11/34 - PDP-11/40 - PDP-11/44 - PDP-11/45 - PDP-11/70 - PDP-11/84

RF11 disk controller - RK11 disk controller - RK611 disk controller

PCL11 Communications System - Chaosnet interface

DZ11 asynchronous serial line interface

CR11 Card Readers

M782 Interrupt Control

KWV11-C programmable real-time clock‎

KEV11-A floating point - KDF11-A CPU - KDF11-B CPU - J-11 chip set - KDJ11-A CPU

MSV11-D MOS memory - MSV11-J memory module

CXY08 8-Line Asynchronous Multiplexer

VAX-11/725 - VAX-11/750 - MS750 Memory System

VAX 8250 - VAX 8350 - VAX 6000 series - VAX 7000 series - VAX 9000 series

MicroVAX I - MicroVAX II - MicroVAX 3100 series - MicroVAX 3500/3600

VAXstation 3200/3500 - VAXstation 3520/3540 - VAXstation 4000 Model 96 - VAXstation 8000

VAXft series

Maxc - S-1 supercomputer

Multics - Incompatible Timesharing System

PDP-7 UNIX - UNIX First Edition - UNIX Sixth Edition

FORTRAN

Emacs editors‎‎ - QED (text editor) - What You See Is What You Get

Bridge

Interface Message Processor - ANTS terminal system - Ethernet - CHAOSnet

Network Control Protocol - TCP/IP - Point-to-Point Protocol

Technology Square

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