Ibm 1620. IBM 1620 Industrial Relations Computer (IBM 1620), School … Flickr The IBM 1620 Model I was a variable "word" length decimal computer using core memory.The Model I core could hold 20,000 decimal digits with each digit stored in six bits It was one of the first IBM computers to be built with transistors, and used magnetic core for its main.
IBM 1620 TimeLine Computer Archive from t-lcarchive.org
This would not have included the extra core storage The IBM 1620 typically cost around £22,000 with educational discount
IBM 1620 TimeLine Computer Archive
The IBM 1620 typically cost around £22,000 with educational discount This means that you couldn't store binary numbers on the machine The 1620 was relatively small and inexpensive for its day
IBM 1620 processing system * All PYRENEES · France, Spain, Andorra. Its basic addressable memory unit could store an ASCII character or a BCD digit Each word comprised four BCD data bits, a "flag" bit, and an odd parity check bit
IBM 1620 TimeLine Computer Archive. In addition to the bits needed for the ASCII/BCD code, the memory location had a. The main memory was logically arranged as 20,000 6-bit words