IBM System/360

"Now one computer fills all your data processing needs"

Announcement / Release
April 7, 1964
around 1978
Birth Place
United States of America


The IBM System/360 (S/360) was a mainframe computer system family. It was the first family of computers designed to cover the complete range of applications, from small to large, both commercial and scientific. The design made a clear distinction between architecture and implementation, allowing IBM to release a suite of compatible designs at different prices. All but the incompatible model 44 and the most expensive systems used microcode to implement the instruction set, which featured 8-bit byte addressing and binary, decimal and (hexadecimal) floating-point calculations.

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