Artifact Details


SC/MP Development System Mother Board

Catalog Number



Physical object


ca. 1975


National Semiconductor Corporation (NSC)

Place Manufactured


Identifying Numbers

Model number ISP-8P/301N
Other number 980304863-002 REV D Assembly number
Other number 990304966-003 Part number
Serial number 9548


3 5/8 x 12 1/4 x 10 in.


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. +5 VDC, -12 VDC suppies tied to tied to ground for static protection. -- DS 3/18/99. Attached to the unit is a tag with directions how to apply power.


Digital computer: development system


Gift of the National Semiconductor Corporation

Lot Number


Related Records

X387.84 SC/MP memory board