Nascom I & II - 4 x TOSEC

"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 for storing data on a tape cassette using the Kansas City standard, and two 8-bit parallel ports. The inclusion of a full keyboard and video display interface was uncommon in this era, most microcomputer