Name/Title
1961- GE 225 Core memory Plane **Tags
GEDescription
The GE-200 product originated in the early days of the Computer Department in Phoenix AZ.In fact, the GE-200 name has been also used for banking products derived from the first GE computer, the ERMA project, General Electric marketed in the early 60s the GE200 Bank Transit system around a document (check) sorting system. Three variations of the same central processor constitutes that product line sold between 1959? and 1966. GE-225GE 235GE-215The GE-225 was derived from the GE-312 and 412 Process control computers, then part of the Computer Department products. It was designed by Arnold Spielberg and Chuck Prosper, ex-RCA engineers who have been working on BIZMAC. It was introduced in 1960.The GE-225 was a 20-bits word binary machine with 3 hardware registers not specially designed for business applications. The instruction of 20-bits contains a 5-bits OP code, 2-bits of address modification and 13-bits of operand address Floating Point is a hardware option. Decimal arithmetic (with 3 6-bits BCD numbers per word , is another option. Real-Time clock, Move command was also an optional feature.
Addition was performed in 36 µs. Multiplication in 288 µs and Division in 495µs
