Return to "Visible Storage"

*** Please note: This website (comp-hist) was completed before I found out about Wikipedia in 2002.
Since then I have added material occasionally.
Items are certainly not complete, and may be inaccurate.
Your information, comments, corrections, etc. are eagerly requested.
Send e-mail to Ed Thelen. Please include the URL under discussion. Thank you ***


Manufacturer DEC - Digital Equipment Corporation
Identification,ID PDP-10 (KA10)
Date of first manufacture1967
Number produced -
Estimated price or cost-
location in museum -
donor -

Contents of this page:



36 bit word - super set of earlier PDP-6

Instruction List, Page 1, 2

see Architecture and Timeline at PDP-6.

Special features

Keith wrote (February 2004)
DEC PDP-10: It's worth noting a number of interesting things about this system. For starters, the PDP-10 is also known as the DECsystem 10 and the DECsystem 20. (The difference between a DS10 and DS20? The color the system was painted, and two instructions in the boot ROM.) The PDP-10 was DEC's attempt to compete directly with IBM in the big-iron field. It virtually always ran a multiuser, timesharing OS, such as TOPS-10. Amusing note about TOPS-10, is that an old version of it had what I consider to be among the funniest error messages in existance:


Other notes about the PDP-10, are that it very frequently had other PDP systems acting as slave I/O processors. In particular, some multiline serial cards for the unit actually had a full, complete-cabinet PDP-11 to drive them. The PDP-9 was also frequently used for such purposes.

And by the way, as of two years ago, PDP-10 clones were still sold.

Historical Notes
see Architecture and Timeline at PDP-6.

This Specimen

Interesting Web Sites

Other information

If you have comments or suggestions, Send e-mail to Ed Thelen

Go to Antique Computer home page
Go to Visual Storage page
Go to top

Updated February 11, 2004