Engineering:Telmac 1800
From HandWiki
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| 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 Finland 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
- 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
- ↑ 1.0 1.1 1.2 "Telmac". http://www.hobbylabs.org/telmac.htm.
- ↑ "The 1970s". http://www.nic.funet.fi/index/FUNET/history/internet/en/1970-luku.html.
- ↑ 3.0 3.1 3.2 3.3 3.4 "Emma 02". https://www.emma02.hobby-site.com/telmac1800.html.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 "RigPix Database - Vintage home computers (Except IBM PC's and their clones) - Telmac 1800". https://www.rigpix.com/vcomp/telmac_1800.htm.
- ↑ 5.0 5.1 Bubenko, Janis; Impagliazzo, John; Soelvberg, Arne (2005-01-14) (in en). 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. https://books.google.com/books?id=qZIgLbka3ogC&dq=Telmac+1800+-wiki&pg=PA280.
- ↑ "1977:Telmac 1800". HobbyLabs. October 2007. http://www.hobbylabs.org/telmac.htm. 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. https://www.academia.edu/9764486.
- ↑ "Gabriele Dal Cengio - Project: Chip-8 Emulator". https://www.gabrieledalcengio.com/projects/chip8.html.
External links
- Revival Studios Developer of new Chip-8/SuperChip/MegaChip8 games.
- Telmac 1800 schematics.
See also
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