S-100 bus
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The S-100 bus or Altair bus, later standardized as IEEE 696-1983, is an early computer bus designed in 1974 as a part of the Altair 8800. The S-100 bus was the first industry-standard expansion bus fo
Cromemco Blitz Bus
Harry Garland and Roger Melen, co-founders of Cromemco, holding an S-100 backplane (1981)
The Cromemco XXU processor board, introduced in 1986. At 16.7 MHz, it is the fastest CPU ever developed for the S-100 bus. It uses a Motorola 68020 processor with 68881 co-processor and 16 Kbytes of high-speed cache memory. This CPU is used in the Cromemco CS-250 computer, widely deployed by the U.S. Air Force.
Racks of Cromemco S-100 Systems at the Chicago Mercantile Exchange in 1984
Intel 8080
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The Intel 8080 is an 8-bit microprocessor produced by Intel, first released in April 1974. It served as the successor to the 8008, despite not being binary compatible with it. Originally intended for
S-100 bus
…memory, or I/O interface plugged into these connectors. The bus signal definitions closely follow those of an 8080 microprocessor system, since the Intel 8080 microprocessor was the first microprocessor hosted on the S-100 bus. The 100 lines of the S-100 bus can be grouped into four types: 1) Power, 2) Data…
Closed and open Intel 8080 processor
AMD Am9080
CEMI MCY7880 (Poland)
Kvazar Kyiv K580IK80 (Ukrainian SSR)