SDS 940 Computer - console

Prev
Next
Image Zoom
  • Details
  • Description
Date Introduced
1966
Photographer
Richards, Mark
Dimensions
overall: 14 in x 24 3/4 in x 6 in
Manufacturer
Scientific Data Systems (SDS)
Copyright Owner
© Mark Richards
Location
United States
Keywords
Tymshare, Inc.; University of California, Berkeley; timesharing
Object ID
102649032
Speed
3.5 microseconds/fixed-point add
Memory Type
Core
Memory Size
64K words
Memory Width
24-bit
Cost
Approx. $125,000

The 940, designed by UC Berkeley’s Project Genie, added paged virtual memory to an SDS 930 to create a timesharing computer. Tymshare, SRI’s influential “oN-Line System” (NLS), and the Berkeley Community Memory bulletin board system used 940s.