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Revision as of 02:29, 28 April 2018
Although I have a wide interest in older computers, I worked with PDP-11's very 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 have focused on them.
For more about me, see my home page.
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.
Prototypes
xxx might refer to:
{disambiguation}}
Useful links
Pages I have added
Analog - Digital - Hardware - Input/output - Software - Program - Programmer
Bit - Byte - Word - Binary - Binary-coded decimal - Floating point - ASCII
Gray code - Parity - Cyclic redundancy check - Error-correcting code
Frequency Modulation - Modified Frequency Modulation - Non Return to Zero Inverted - Run-length limited coding
Synchronous - Asynchronous - Meta-stability - Synchronizer - Arbiter
Electron - Current - Voltage - Ground - Resistor - Capacitor - Semiconductor
Vacuum tube - Diode - Transistor - Metal Oxide Semiconductor
Gate - Transistor-transistor logic - Open collector - Emitter-coupled logic - Integrated circuit - 74 series
Central Processing Unit - Instruction - Load-store architecture - Main memory - Peripheral - Device controller - Secondary storage
Address space - Segmentation - Memory management - Base and bounds - Swapping - Virtual address - Virtual memory - Single-level store
Arithmetic-logic unit - Register - Pipeline - Microcode - First-In First-Out buffer - Cache
Program Counter - Processor Status Word - Stack Pointer - Condition codes
Stack - Conditional branch - Control flow - Loop - Subroutine - No-op
Object code - Relocatable binary
Commercial Instruction Set - Reduced Instruction Set Computer - Complex Instruction Set Computer
User - Mainframe - Minicomputer - Personal computer - Microprocessor - Front end
Bootstrap - Simulator - Emulator
Programming language - Source code - Macro - Subroutine package - Assembly language - Compiler - Cross-compiler - Interpreter
Stack frame - Call stack - Local variable - Exception - Condition handler - Unwind - Library
Batch - Multitasking - Process - Virtual machine - Time-sharing - Real-time system - Task
File - File system - Byte stream - Command processor - DOS
Interrupt - Direct Memory Access - Programmed I/O - Trap
Magnetic storage - Head - Drum - Disk - Fixed-head disk
Magnetic tape - Magnetic tape drive - Magnetic tape controller
Modem - Serial line - Asynchronous serial line - Synchronous serial line - 20mA current loop serial line interface - EIA RS-232 serial line interface
Backplane - Wire-wrap - Printed circuit board - Flat cable
System Module - DEC card form factor - DEC edge connector contact identification - System unit - DEC alphabet
H960 rack - BA11 mounting boxes - BA11 mounting box - BA11-K mounting box - BA11-L mounting box
DECtape - LINC tape - DEC indicator panel
LINC - LINC-8 - PDP-9 - PDP-12
PDP-6 - KA10 - KI10 - KL10 - KS10
PDP-15 - UNICHANNEL 15 System - MX15-B Memory Multiplexer
PDP-11 Memory Management - UNIBUS map
PDP-11 Extended Instruction Set - FP11 floating point - FIS floating point - PDP-11 Commercial Instruction Set
Bus grant line - Non-Processor Request - Upgrading QBUS backplanes
Small Peripheral Controller - Modified UNIBUS Device - Extended UNIBUS
CD interconnect - Private Memory Interconnect - MASSBUS
G727 grant continuity card - G7273 grant continuity card - UNIBUS H854 header pinout - DEC asynchronous serial line pinout
KA11 CPU - KT11-B Paging Option - KA11 changes for the KT11-B - KT11-B Technical Manual - KT11-B Major State circuitry
PDP-11/05 - KD11-B CPU - KD11-A CPU - PDP-11/34A - KD11-E CPU - KD11-EA CPU - KY11-LA Operator's Console - KY11-LB Programmer's Console
FP11-A Floating-Point Processor - FP11-B Floating-Point Processor - FP11-C Floating-Point Processor
KK11-A Cache Memory - MJ11 memory system - MK11 memory system
LSI-11 - F-11 chip set - KTF11-A memory management chip - KEF11-A floating point chip - KDF11 CPUs - KDF11-U CPU
FPJ11 floating point accelerator - KDJ11 CPUs - KDJ11-B CPU - KDJ11-E CPU - KTJ11-B UNIBUS adapter - PDP-11/83
UNIBUS memories - MM11-D core memory - MM11-K core memory - MM11-L core memory - MM11-U core memory
QBUS memories - CMV-[25]xx - CMV-[14]000 - MK8022 - National Semiconductor NS23M - National Semiconductor NS23C - Q-RAM 11
UNIBUS boot ROMs - BM792 ROM - BM873 ROM - M9301 ROM - M9312 ROM
QBUS boot ROMs - BDV11 Bus Terminator/ROM
RH11 MASSBUS controller - RH70 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
TU16 magtape drive - TE16 magtape drive - TS03 magtape drive
DR11 parallel interface - DR11-B parallel interface - DL11 asynchronous serial line interface - DH11 asynchronous serial line interface
RK02 disk drive - RP02 disk drive - RP03 disk drive - RP04 disk drive - RX0x floppy drive
Texas Instruments - Intel - MIPS - Xerox
IBM 704 - IBM 709 - IBM 7090 - IBM 7094 - Honeywell 6000 series
Intel 8085 - Intel x86 - Motorola M68000 Family - Motorola MC68000
Xerox Alto - IBM PC - IBM-compatible PC
Compatible Time-Sharing System - TOPS-10 - TENEX - MOS operating system
2.10BSD - 2.11BSD - UNIX file system - BSD Fast File System
Installing UNIX Sixth Edition - Installing UNIX Sixth Edition on Ersatz-11 - Running an LSI-11 from Unix V6 - Running UNIX V6 on an -11/23 - Installing Unix Seventh Edition
Reliable byte stream - Protocol - Protocol suite - Packet - Datagram - Packet switch - Host
Host-to-IMP Protocol - Internet - Big-endian - Little-endian
Engineering Change Order - Request for Comments - Bitsavers - Vonada's Engineering Maxims
Pages I have substantially upgraded
Digital Equipment Corporation - International Business Machines
PDP-11 architecture - UNIBUS - QBUS
PDP-11/04 - PDP-11/10 - PDP-11/24 - PDP-11/34 - PDP-11/45 - PDP-11/70
KDF11-A CPU - KDF11-B CPU - KDJ11-A CPU - J-11 chip set
RF11 disk controller - RK11 disk controller - RK05 disk drive - RL0x disk drive - RP06 disk drive
Multics - Incompatible Timesharing System - UNIX Sixth Edition
Interface Message Processor - Network Control Program - Ethernet
