The Telmac 1800[1] is an early microcomputer that was delivered in kit form.

[2] It was introduced in 1977 by Telercas Oy,[3][4][5] the Finnish importer of RCA microchips.

Most of the 2,000 kits manufactured over four years[5] were bought by electronics enthusiasts[1] in Finland, Sweden and Norway.

An expansion board, OSCOM, later became available, and included an alphanumeric video display, and up to 12 kB of memory.

A 4 kB Tiny BASIC could be run on this configuration.