Compucolor: Difference between revisions
m I corrected the body text to state 32kB RAM max, not 48kB. SMC, not SMCS, created the 5027 CRT controller. |
disk size is 5.25" with dot, not comma |
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To lower costs, the original CompuColor's custom monitor and housing was re-packaged into a standard [[GE]] 13" color television set, from which the TV-tuner controls section was removed. The machine was based on the [[Intel 8080]] and used an SMC-supplied graphics chip (CRT5027) that provided 128 by 128 in 8 colors. The system was sold with as little as 8kB of [[RAM]], expandable up to 32kB, and offered with one of three keyboards, which attached to the computer with a [[ribbon cable]]. A [[Read-only memory|ROM]]-based [[BASIC]] was also included (apparently a knock-off, but improved version of [[Microsoft BASIC]]). |
To lower costs, the original CompuColor's custom monitor and housing was re-packaged into a standard [[GE]] 13" color television set, from which the TV-tuner controls section was removed. The machine was based on the [[Intel 8080]] and used an SMC-supplied graphics chip (CRT5027) that provided 128 by 128 in 8 colors. The system was sold with as little as 8kB of [[RAM]], expandable up to 32kB, and offered with one of three keyboards, which attached to the computer with a [[ribbon cable]]. A [[Read-only memory|ROM]]-based [[BASIC]] was also included (apparently a knock-off, but improved version of [[Microsoft BASIC]]). |
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The original CompuColor used an [[8-track tape]] for storage, but this proved unreliable. In the CompuColor II, it was replaced with a 53kB 5 |
The original CompuColor used an [[8-track tape]] for storage, but this proved unreliable. In the CompuColor II, it was replaced with a 53kB 5.25" [[floppy disk]] drive, which was placed on the right side of the screen instead of the TV-tuner controls section. The file system drivers were not changed, which resulted in the Operating System continuing to think it was interfacing with a tape drive: When a file was deleted, the files beyond that point on the disk were moved to fill the empty space, using the 8kB portion of RAM dedicated to the video as a buffer. |
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Most software for this computer was written by hobbyists, with some software written by third-parties. Intelligent Systems Corporation created a few software titles of their of own. The most important title for the CompuColor II was probably a game called "Startrek". The predecessor CompuColor was advertised with the screen showing the game running from the 8-track tape. |
Most software for this computer was written by hobbyists, with some software written by third-parties. Intelligent Systems Corporation created a few software titles of their of own. The most important title for the CompuColor II was probably a game called "Startrek". The predecessor CompuColor was advertised with the screen showing the game running from the 8-track tape. |
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Revision as of 16:03, 8 November 2013
| Manufacturer | Intelligent Systems Corp. |
|---|---|
| Release date | 1977 |
| Lifespan | 1977-1993 |
| Operating system | CompuColor OS |
| CPU | Intel 8080A |
| Memory | 8 KB (up to 32 KB) |
The CompuColor II was an early home computer introduced in 1977 by Intelligent Systems Corporation. It was a lower-cost version of the Compucolor, which is credited with being the first home computer system with built-in color graphics, designed to hit the home computer price points.[1] Unlike its predecessor, it was an "all-in-one" computer, meaning that mainboard, monitor and floppy disk drive were integrated into one case.
To lower costs, the original CompuColor's custom monitor and housing was re-packaged into a standard GE 13" color television set, from which the TV-tuner controls section was removed. The machine was based on the Intel 8080 and used an SMC-supplied graphics chip (CRT5027) that provided 128 by 128 in 8 colors. The system was sold with as little as 8kB of RAM, expandable up to 32kB, and offered with one of three keyboards, which attached to the computer with a ribbon cable. A ROM-based BASIC was also included (apparently a knock-off, but improved version of Microsoft BASIC).
The original CompuColor used an 8-track tape for storage, but this proved unreliable. In the CompuColor II, it was replaced with a 53kB 5.25" floppy disk drive, which was placed on the right side of the screen instead of the TV-tuner controls section. The file system drivers were not changed, which resulted in the Operating System continuing to think it was interfacing with a tape drive: When a file was deleted, the files beyond that point on the disk were moved to fill the empty space, using the 8kB portion of RAM dedicated to the video as a buffer.
Most software for this computer was written by hobbyists, with some software written by third-parties. Intelligent Systems Corporation created a few software titles of their of own. The most important title for the CompuColor II was probably a game called "Startrek". The predecessor CompuColor was advertised with the screen showing the game running from the 8-track tape.
References
External links
- InteColorTerminals.com – Intecolor history
- ComputerCloset.org – Information about the Compucolor II
- AtariArchives.org – Product profile
- Old-Computers.com – Technical information
- CPU-World.com – Intel 8080 family
- Compucolor.org – Compucolor II tribute site, including javascript emulator
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