Commodore PC compatible systems

The Commodore PC compatible systems are a range of IBM PC compatible personal computers introduced in 1984 by home computer manufacturer Commodore Business Machines.

This article is about 1980s IBM PC compatible systems manufactured by Commodore Business Machines. For the 2010s series of Windows-compatible computers, see Commodore USA.

A Commodore PC20

Close-up of a Commodore PC 20-III

Incompatible with Commodore's prior Commodore 64 and Amiga architectures, they were generally regarded as good, serviceable workhorse PCs with nothing spectacular about them, but the well-established Commodore name was seen as a competitive asset.[1]

History

In 1984 Commodore signed a deal with Intel to second source manufacture the Intel 8088 CPU used in the IBM PC, along with a license to manufacture a computer based on the Dynalogic Hyperion. It is unknown whether any of these systems were produced or sold.

In 1987 the first model released, the PC-10, sold for $559 without monitor ($1258 in 2019).[2] They were sold alongside Commodore's Amiga and Commodore 64c/128 lines of home and graphics computers. The PC10 was comparable in the market to the Blue Chip PC, Leading Edge Model D and Tandy 1000 line of PC compatibles.[3][4]

Models

The line consists of the following models:

• PC-I (a.k.a. PC1): A small-form-factor low-end non-expandable system. It has a 4.77 MHz 8088 processor, combined Hercules/CGA graphics, one 5.25-inch floppy disk drive. It came standard with 512 kB RAM.
• PC-5: A full-size PC/XT-clone, with a standard monochrome text card and 512k of memory on the motherboard. It is expandable with up to five 8-bit ISA cards.[5]
• PC-10: A full AT-sized model with 8088, combined Hercules/CGA/Plantronics Colorplus graphics provided by an ATI Graphics Solution card. Two variations were produced: the PC10-1, with one floppy drive and 512 kB RAM; and the PC10-2 with two floppy drives and the full complement of 640 kB RAM. The systems can be upgraded with the 8087 FPU.[6]
• PC-20: A PC-10 with a 20 MB hard disk
• Colt: A rebranded PC10-III
• PC-30: A PC-AT compatible with a 12 MHz 80286 CPU and a 20MB hard disk.
• PC-40: 12 MHz PC-AT system. 1 MB RAM, on-board VGA/EGA/CGA and Hercules video, and hard disk options from 20–80 MB.[7]
• PC-50: Based on the 386SX running at 16 MHz. 40MB to 100MB hard disk.
• PC-60: 25 MHz 386 system with FPU. Came in a tower case with 60 MB to 200 MB hard disk.

References

1. "RUN Magazine issue 42".
2. "TCP ad, Run magazine Sep. 1987".
3. "The PC10 has Landed". Two of the PC10-2's most visible competitors for the home and school markets are the Leading Edge Model D and the Tandy 1000SX.
4. "Run Magazine Issue 42 : Free Download & Streaming : Internet Archive". Internet Archive. Retrieved 22 December 2014.
5. "Impressions of the Commodore PC-5". Retrieved 22 December 2014.
6. "RUN Magazine Issue 42".
7. "Original Commodore PC-40 Brochure". Classic Computer Brochures. Retrieved 21 December 2014.

External links

• Richard Lagendijk: CIP - Commodore Info Page
• Bo Zimmerman: Commodore turns blue
• Bo Zimmerman's Commodore gallery
• OLD-COMPUTERS.COM
• Brochure comparing a number of Commodore Models