Telmac 1800
 | |
| Type | Home computer, Computer kit |
|---|---|
| Release date | 1977 |
| Units sold | 2000 |
| Media | Compact Cassette |
| CPU | RCA 1802 (COSMAC) microprocessor CPU |
| Memory | 2 kB RAM, expandable to 4 kB |
| Display | 64×128 pixels display resolution |
| Graphics | RCA CDP1861 |
| Sound | fixed frequency tone |
| Successor | Telmac TMC-600 / Telmac TMC-2000 |
The Telmac 1800[1] was an early microcomputer 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.[6]
The first-ever commercial video game to be developed in Finland, Chesmac (fi), 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.
Major features[edit]
- RCA 1802 (COSMAC) microprocessor CPU @ 1.75 MHz[3][4]
- Cassette tape interface[4]
- 2 kB RAM, expandable to 4 kB[3][4]
- RCA CDP1861 'Pixie' video chip, 64×128 pixels display resolution[1][3][4]
- Sound limited to a fixed frequency tone [3][4]
- Able to run a CHIP-8 interpreter[8]
References[edit]
- ^ a b c "Telmac". www.hobbylabs.org.
- ^ "The 1970s". www.nic.funet.fi. Retrieved 2022-11-24.
- ^ a b c d e "Emma 02".
- ^ a b c d e f "RigPix Database - Vintage home computers (Except IBM PC's and their clones) - Telmac 1800". www.rigpix.com. Retrieved 2022-11-24.
- ^ a b Bubenko, Janis; Impagliazzo, John; Soelvberg, Arne (2005-01-14). History of Nordic Computing: IFIP WG9.7 First Working Conference on the History of Nordic Computing (HiNC1), June 16-18, 2003, Trondheim, Norway. Springer Science & Business Media. ISBN 978-0-387-24167-8.
- ^ "1977:Telmac 1800". HobbyLabs. October 2007. Retrieved 2008-04-06.
- ^ Reunanen, Markku (2014-12-10). "Chesmac: ensimmäinen suomalainen kaupallinen tietokonepeli – jälleen (Chesmac – Yet Another First Commercial Finnish Computer Game)". Pelitutkimuksen Vuosikirja 2014.
- ^ "Gabriele Dal Cengio - Project: Chip-8 Emulator". www.gabrieledalcengio.com. Retrieved 2022-11-25.
External links[edit]
- Revival Studios Developer of new Chip-8/SuperChip/MegaChip8 games.
- Telmac 1800 schematics.
See also[edit]
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