| Telmac 1800 | |
| Type: | Home computer, Computer kit |
| Processor: | RCA 1802 (COSMAC) microprocessor CPU |
| Media: | Compact Cassette |
| Memory: | 2 kB RAM, expandable to 4 kB |
| Graphics: | RCA CDP1861 |
| Sound: | fixed frequency tone |
| Successor: | Telmac TMC-600 / Telmac TMC-2000 |
| Display: | 64×128 pixels display resolution |
| Units Sold: | 2000 |
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 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 of memory. A Tiny BASIC could be run on this configuration.[6]
The first-ever commercial video game to be developed in Finland, Chesmac, was developed by Raimo Suonio on a Telmac 1800 computer in 1979.[7]
The Telmac 1800 was followed by the Oscom Nano and the Telmac 2000.