GE-200 series

Résumé

The GE-200 series was a family of small mainframe computers of the 1960s, built by General Electric (GE). GE marketing called the line Compatibles/200 (GE-205/215/225/235). The GE-210 of 1960 was not compatible with the rest of the 200 series. 200 series models The main machine in the line was the GE-225 (1961). It used a 20-bit word, of which 13 bits could be used for an address. Along with the basic central processing unit (CPU) the system could also have had a floating-point unit (the "Auxiliary Arithmetic Unit"), or a fixed-point decimal option with three six-bit decimal digits per word. It had eleven I/O channel controllers, and GE sold a variety of add-ons including disks, printers, and other devices. The machines were built using discrete transistors, with a typical machine containing about 10,000 transistors and 20,000 diodes. They used magnetic-core memory, and a standard 8 kiloword system held 186,000 magnetic cores. They weighed about . T

Source officielle

https://en.wikipedia.org/wiki/GE-200_series

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