Engineering:GEM 1000

From HandWiki
Short description: Belgian home computer
GEM 1000
Also known asCharlemagne 999
DeveloperGEM International Corporation
TypeComputer
Release dateScript error: No such module "Date time".
Operating systemBASIC
CPUZilog Z80A @ 3.57 MHz
Memory16 KB
Removable storageCassette tape
Display32×16 text in 8 colors; 128×64, 128×96, 128×192, 256×192 graphics with 2 background and 3 foreground colors
GraphicsMC6847P
SoundAY-3-8910
Input50 key QWERTY keyboard
Marketing targetChildren
RelatedCCE MC-1000, Rabbit RX83

The GEM 1000 Junior Computer, also known as Charlemagne 999, was a 1983 microcomputer sold in Belgium by Vidéo Direct International (VDI).[1][2][3][4] It was a low cost toy home computer for children from 5 years upwards,[2] produced by Taiwan based GEM International Corporation.[3] It was part of a family consisting of the GEM-2000 Family Mini-Computer, GEM-3000 Family Super Computer and the GEM-4000 Professional Computer.[5][4]

The GEM 1000 used a Z80A CPU running at 3.57 MHz, had 16 KB of RAM, and a chiclet 50 key QWERTY keyboard.[3] BASIC commands were typed by pressing a single key using a dialect similar to Applesoft BASIC.[3] The Charlemagne 999 model used French instead of English keywords.[1]

The computer had a reported price of 7000 BEF in early 1984.[4]

A similar machine, the Rabbit RX83 produced by Rabbit Computers of Hong Kong, was launched at the 1983 edition of the Consumer Electronics Show with a price of just US$99.[6][7][8] Nevertheless the Rabbit only had 2 KB of RAM, limiting the display to 32×16 characters in 8 colors or 128×64 graphics with 2 background and 3 foreground colors.

Another computer based on the GEM 1000 was the Brazilian CCE MC-1000.[3][9][10][11]

Technical specifications

  • CPU: Zilog Z80A, 3.57 MHz[3]
  • Memory: 16 KB RAM expandable to 64 KB; 8 KB ROM;[3]
  • Keyboard: 50-key chiclet keyboard[3]
  • Display: Motorola MC6847P (32×16 text in 8 colors; 128×64, 128×96, 128×192, 256×192 graphics with 2 background and 3 foreground colors)[3]
  • Sound: AY-3-8910 (3 voices and white noise)[3]
  • Ports: cassette recorder interface, TV output connector, joystick[3]

References

  1. 1.0 1.1 "Silicium : Avis de recherche 1". http://silicium.org/oldskool/wanted.htm. 
  2. 2.0 2.1 "Charlemagne". Vidéo7. August 1983. https://oldskool.silicium.org/images/wanted/charlemagnepub.jpg. 
  3. 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 "GEM 1000 Junior Computer / Charlemagne 999". Old computers. http://www.old-computers.com/museum/computer.asp?st=1&c=420. Retrieved 2013-12-27. 
  4. 4.0 4.1 4.2 "Le docteur grant, un janus Belge...". Votre Ordinateur (4): pp. 86. March 1984. https://archive.org/details/VotreOrdinateur04/page/n85/mode/1up. 
  5. "Computer Models Database". http://www.epocalc.net/php/liste_models.php?nom=O&nocomp=pc. 
  6. Ahl, David H. (September 1983). "1983 Summer Consumer Electronics Show". Creative Computing 9 (9): pp. 202. https://archive.org/details/creativecomputing-1983-09/page/n205/mode/1up. 
  7. Rabbit Computer (1983) (in English). Rabbit Computer RX83 Flyer from Summer 1983 CES. https://archive.org/details/RabbitComputerRX83FlyerfromSummer1983CES. 
  8. Garroch, Ken (March 1983). "Wrap-Bit RUN". Personal Computer News: pp. 20, 21, 23. https://archive.org/details/PersonalComputerNews/PersonalComputerNews058-21Apr1984/page/n21/mode/1up. 
  9. "MC 1000 CCE". https://www.old-computers.com/museum/computer.asp?st=1&c=331. 
  10. "CCE". Revista Micro Sistemas: pp. 33. August 1986. https://lh4.googleusercontent.com/sXDuc8mdMmS_pyCDw4cPGjx6lk4V6GLST6V1e1DTAufc3W4p1G6Ekgy6PmgiwIUuMELkppgDsPztW_uTaHAU1x6bHv7MM7_6GCsYF7eXSZd1kuIOzWRfUojypCO9WKZn3A=w1280. 
  11. Diário Oficial da União de 9 de fevereiro de 1984. February 9, 1984. pp. Seção I 2005. https://lh6.googleusercontent.com/Isnv7gNxyRhQTQEIycsSVBoFhChtc2oY-xdl6vysNiptc1X-ALKwOvBCtX8LqurebVK989tuScRldRUdzgAUzZGAav9PCzSiWel9Sw7lVqnXWzoXKdR6-T8gg8vWeWuUQQ=w1280.