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C > COMMODORE  > PC Compatible systems     


Commodore
PC Compatible systems

Commodore launched its range of PC-compatible systems at the height of the company’s popularity, with home and business systems being sold in over 50 countries. Commodore was the largest seller of computer systems in the world with sales in excess of $1 billion. Regardless, Commodore eventually suffered from permanent financial and structural problems.

The range of Commodore PC-compatible computers offered several different models:
- PC-1 A very small PC-compatible with a 4.77MHz 8088 processor (without turbo clock), a single 5.25” FDD, 512KB of RAM, and Hercules/GCA video board. The PC-1 lacked any internal expansion slots or cooling fans.
- PC-10 A basic 8088-based PC-compatible system with 1 or 2 floppy drives (page photo).
- Colt A re-branded version of the PC-10 system.
- PC-20 Identical to the PC-10 system, but included a 20MB hard disk.
- PC-30 PC-AT 12 MHz 80286-based system including a 20MB hard disk. Probably the same machine as the PC-35 but only sold in Europe.
- PC-35 Same features as the PC-30.
- PC-40 PC-AT 10 MHz system with 1 MB RAM, Hercules/CGA video card, and a 20MB to 80MB hard disk. A jumper setting allowed the memory to be configured between 640KB or 512KB + 512KB of extended memory.
- PC-50 80386SX 16 MHz system with a 40MB to 100MB hard disk.
- PC-60 80386 25 MHz system with a tower case and a 60MB to 200MB hard disk.

The first Commodore PC-compatible was launched in early 1984, and the final systems left the German factory in 1993 – one year before the company ceased operations

___________

Maarten Jongkind comments:
As an engineer back in the late 80s I installed, maintained and repaired commodore PC's. It was not a specific exciting or revolutionary computer but merely a good working IBM clone which evolved likewise. The PC10 however did gave me some strange problems due to the position of the double floppy drives, see the gap between them in the picture.

Once I recieved a strange complaint from a user, the computer was eating floppy's. they went in but never came out again. After a two hours drive I found that the user had inserted about 20 floppy's or more in the gap between the drives ;-))




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I owned a Commodore PC 20-III with a dual floppy disk (1-3,5" 720kB 2-5,25" 360kB) and a hard disk (20 MB). It featured a 12,66 MHz 8088 and came with a color monitor (the same sold with the Amiga 500).

To add value to the "technical informations" it also featured a CGA/Plantronix graphics card, capable of 320x200 at 16 of 256 colors. Unfortunately not many programs supported this colorful resolution at the time (once was deluxe paint).

A really good and robust machine with a beautiful and comfortable keyboard and a mouse (the same of amiga 500).

          
Wednesday 20th August 2014
Massimo (Rome / Italy)

I owned a Commodore PC 20-III with a dual floppy disk (1-3,5" 720kB 2-5,25" 360kB) and a hard disk (20 MB). It featured a 12,66 MHz 8088 and came with a color monitor (the same sold with the Amiga 500).

To add value to the "technical informations" it also featured a CGA/Plantronix graphics card, capable of 320x200 at 16 of 256 colors. Unfortunately not many programs supported this colorful resolution at the time (once was deluxe paint).

A really good and robust machine with a beautiful and comfortable keyboard and a mouse (the same of amiga 500).

          
Wednesday 20th August 2014
Massimo (Rome / Italy)

I have a PC-1. It does indeed have an Expansion port on the back. But it''s not very useful. Some voltages and a Intact DMA0 line are missing. Also, the pinout is different from an ISA Port. But with a ISA Backplane and a AT Power Supply I made an Expansion Adapter with 5 additional slots. When you set the dip switches of the initial PC-1 Videomode to "none", you can add any Graphics card you like, but keep in mind it needs to refresh its own memory, otherwise you will be plagued with video artifacts. I used a WDC 16-bit SVGA card, a MFM Harddisk controller and a Soundblaster. Obviously, the internal PSU is too small for that and the stuff behind the PC-1 needs much more space than the PC-1 itself!

          
Wednesday 29th May 2013
Exin (Germany)

 

NAME  PC Compatible systems
MANUFACTURER  Commodore
TYPE  Professional Computer
ORIGIN  U.S.A.
YEAR  1984
END OF PRODUCTION  1993
BUILT IN LANGUAGE  None
KEYBOARD  84 keys (8088 systems), 102 keys (286 and above)
CPU  8088, 80286, 80386-SX, 80386
SPEED  4.77 to 9.54 MHz (8088), 6 to 12 MHz (80286), 8 to 16 MHz (386SX), 25 MHz (80836)
CO-PROCESSOR  Optional Math coprocessor
RAM  640 KB to 2 MB according to models
TEXT MODES  40 or 80 chars x 25 lines
GRAPHIC MODES  From GCA (640 x 200) to SVGA (800 x 600), Hercules monochrome as well
COLOrsc  16 minimum in colour systems
SOUND  Tone generator
BUILT IN MEDIA  360 KB to 1.44 MB floppy discs, 20 to 200 MB hard disc
OS  All the available PC operating systems
POWER SUPPLY  Built-in power supply unit
PERIPHERALS  all 8, 16, 32 bit PC cards





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