Commodore PET 2001-32

The PET has a special place in the history of micro-computers, as it was one of the biggest sellers in the 1979 / 1980 period, when computers were aimed at both the home and business market. Many people instantly recognise the PET as it stood out from the usual ' terminal plus box' computer.

This was the first PET model, launched in 1977. It was a popular machine and found many admirers, from educational use, hobbyists, and some business users. The first machines only had 4K of RAM, mine has 8K, but even this was very limiting so several third-party memory expansion boards were available to take the memory up to 32K. It has a built in system ROM (6K) and BASIC (8K), and with additional memory could run 6502 assemblers and even compilers The screen could display upper and lower case letters, and an attractive range of graphics symbols. These features encouraged a large library of software to be written.

The 2001 model was found to be slow in updating its display, until someone discovered a way of speeding up the graphics routines with a POKE to memory. This was fine, but on later machines the graphics hardware was improved and the same POKE caused the screen to go blank and was know as 'the killer POKE'.

Some of the chips used on the motherboard:

Main RAM 16 x MOS MPS 6550 (8K)
Main ROM 7 x MOS MPS 6540 (14K)
Video RAM 2 x MOS MPS 6550 (1K)

Manufacturer: Commodore
Date: June 1978

Other Systems Related To Commodore PET 2001-32:

Item Manufacturer Date
Amstrad CPC 6128 Plus Commodore Unknown
Commodore PET 3016 Commodore 1977
Commodore PET 2001 Commodore June 1977
Commodore PET 2001 (Blue Label) Commodore June 1977
Commodore PET 3032 Commodore 1979
Commodore PET CBM 3008 Commodore 1979
Commodore PET 8032SK Commodore 1979
Commodore PET 8096SK Commodore 1980
Commodore PET 4032 Commodore May 1980
Commodore PET 4008 Commodore May 1980
Commodore VC-20 Commodore 1981
Commodore VIC-20 Commodore 1981
Commodore P500 Commodore 1982
Commodore Pet 8032-32B Commodore 1982
Commodore 64 Commodore August 1982
Commodore SX-64 (240V UK) Commodore 1983
Commodore SX-64 (110v US) Commodore 1983
Commodore Pet 8296-D Commodore 1983
Commodore 16 Commodore 1984
Commodore Plus 4 Commodore 1984
Commodore C128 Commodore January 1985
Commodore 128D Commodore December 1985
Commodore Amiga 2000 or A2000 Commodore 1986
Commodore Amiga A500 Commodore 1987
Commodore PC-I Commodore 1987
Commodore 64 C Terminator 2 Pack Commodore March 1987
Commodore 64 C Commodore March 1987
Commodore 64 C Hollywood Presents Pack Commodore March 1987
Commodore 64 C German Commodore March 1987
Commodore Amiga A500 Plus Commodore April 1987
Commodore C286-LT Portable Commodore 1990
Commodore Amiga 1500 Commodore 1990
Commodore C386SX-LT Commodore 1991
Commodore Amiga A600HD Commodore 1992
Commodore Amiga A600 Commodore March 1992
Commodore Amiga A1200 Commodore 21st October 1992
Commodore Amiga CD32 Commodore September 1993

This exhibit has a reference ID of CH41502. Please quote this reference ID in any communication with the Centre for Computing History.


Commodore PET 2001-32

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