Columbia University Computing History   

SSEC Arithmetic Unit

SSEC Arithmetic Unit
SSEC Arithmetic Unit; Photo: [83]
Fig 3: A section of the SSEC arithmetical unis showing arrangement of electronic tubes that perform the basic counting operations of the Calculator. "Electronic curcuits are used for all the arithmetical operations, for part of the control operations, and for part of the memory; in fact, they are used wherever highest speed is required." [83].
Columbia University Computing History Frank da Cruz / fdc@columbia.edu This page created: September 1983 Last update: 4 April 2021