
1) Early microcomputer 2) Nasa communications network
Found on
https://www.crosswordclues.com/clue/nascom

The Nascom 1 and 2 were single-board computer kits issued in 1977 and 1979, respectively, based on the Zilog Z80 and including a keyboard and video interface, a serial port that could be used to store data on a tape cassette using the Kansas City standard, and two 8-bit parallel ports. At this time, including a full keyboard and video display inte...
Found on
http://en.wikipedia.org/wiki/Nascom

acronym: NASA Communications Network
Found on
https://www.encyclo.co.uk/local/20002
No exact match found.