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12 manuals SDS SIGMA; SIGMA 7 computer reference manual and more, see list. Scientific Data Systems SIGMA.

12 manuals SDS SIGMA; SIGMA 7 computer reference manual and more, see list.

Scientific Data Systems SIGMA, 1966, double-column text; approx 440 pages in 12 manuals.
Condition: Ver Good overall, 8.5x11 blue and tan cardstock covers with SIGMA vertically along front cover in 3 columns; 3-hole punched, stapled bindings secure, pages clean.
Price: $35.00
Item no. R215
Item Description
Includes SDS SIGMA 7 Computer Reference Manual; SDS SIGMA 2 Basic Fortran reference manual; Glossary of Computer Terminology; SDS SIGMA Computer SYstems / Interface Design Manual; General information - Sort Merge Routines; General Information - Operating Systems; General Information - SDS COBOL-66; General Information - PL / I; General Information - FORTRAN IV-H; General Information - FORTRAN IV; General Information - Assemblers; System Interface Units

series of computers that were introduced by Scientific Data Systems in 1966.[1] The first machines in the series are the 16-bit Sigma 2 and the 32-bit Sigma 7; the Sigma 7 was the first 32-bit computer released by SDS. At the time the only competition for the Sigma 7 was the IBM 360 (from wikipedia).