DEC 36-bit Computers
- PDP-3 – paper design, never produced by DEC
- PDP-6
- Type 166 processor, using DEC System Modules
- PDP-10
- KA10
- KI10 – first to use integrated circuits, and paged memory management
- KL10 – used ECL integrated circuits for high speed
- KS10 – smaller and less expensive, based on bit-slice TTL
Note that there is not a PDP-20. The DECSYSTEM-20 is based on the PDP-10, using either KL10 or KS10 processors.
DEC cancelled development of a higher-performance KC10 “Jupiter” CPU. Reportedly DEC built prototypes of “Minnow”, a desktop PDP-10.
Operating Systems
- TOPS-10, originally called simply “Monitor”
- TENEX, developed at BBN, for a KA10 with a custom-built pager
- TOPS-20, based on TENEX, sometimes known as Twenex
- ITS: The Incompatible Timesharing System, from MIT
- WAITS, West-coast Alternative to ITS, from Stanford, based on an early version of the Monitor
- TYMCOM-X, by Tymshare, based on the TOPS-10 monitor version 5.02C
DEC Documents
DEC has made available a Personal License for PDP-10 software. The DEC documentation on this site are available for download only under the terms of this license.
- Manuals
- Maintenance Prints
- Price Lists
Third-Party Documents
- User Guides
Simulators
Several PDP-10 Simulators are available.
Other Online Resources
- Joe Smith’s PDP-10 Index
- Panda TOPS-20 Home Page
- RCS/RI DECsystems page
- John Wilson’s PDP-10 FTP archive on ftp.dbit.com
- Phil Budne’s PDP-10 Miscellany Page
- Tom Knight’s PDP-6 page with scans of the print set and hardware maintenance manual
- Carl Friend’s KI-10 page
- The DECSYSTEM-20 at Columbia University by Frank da Cruz and Christine Gianone
Humor
- I/O Deja Vu: A Farce In One Act, by S. Foonly
- Alice’s PDP-10, by Rob Austein