Artifact Details


SC/MP CPU circuit board

Catalog Number



Physical object


This is another CPU board that plugs into the SC/MP Development System Mother Board (X383.84). See X383.84 for notes on development system. The National Semiconductor SC/MP, developed around 1975, is an example of an engineering development system using a microprocessor. Though it is not a personal computer, a large number of enthusiasts built hobby computers adapted from kits like this which were inteded for industrial prototyping.This is the mother board for a development system- a do-it-yourself kit. A student- experimenter- etc. can customize cards to plug into the mother board to make a complete system. The long black connectors on the left are buses to plug cards into. A keyboard is used for simple programming and a small display above the keyboard. The chip with glass window is probably an EPROM. You can burn a program into the EPROM. The glass window is so you can erase the EPROM with ultraviolet light.


c. 1975


National Semiconductor Corporation (NSC)

Identifying Numbers

Other number 5514713-A Etched on top of board
Other number 9804713 A Printed on top of board
Other number ISP-8C/100 Printed on top of board
Serial number 1096


overall: 5/8 in x 5 1/8 in x 4 3/4 in


Digital computer: development system


Gift of the National Semiconductor Corporation

Lot Number