Click Here to visit our Sponsor
The History of Computing The Magazine Have Fun there ! Buy goodies to support us
  Mistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


ZX81 T-shirts!

see details
Ready prompt T-shirts!

see details
ZX Spectrum T-shirts!

see details
Spiral program T-shirts!

see details
Atari joystick T-shirts!

see details
Arcade cherry T-shirts!

see details
Battle Zone T-shirts!

see details
Vectrex ship T-shirts!

see details
Elite spaceship t-shirt T-shirts!

see details
C64 maze generator T-shirts!

see details
Competition Pro Joystick T-shirts!

see details
Atari ST bombs T-shirts!

see details
Moon Lander T-shirts!

see details
Pak Pak Monster T-shirts!

see details
BASIC code T-shirts!

see details
Vector ship T-shirts!

see details
Breakout T-shirts!

see details
Pixel adventure T-shirts!

see details

C > COMMODORE  > SuperPet   


The SuperPET SP9000, also known as Micro-Mainframe or MMF9000, was developed in conjunction with the Department of Computer Science of the University of Waterloo in Ontario, Canada. It was primarily designed with universities and scientists in mind.

Based on the CBM 8000 series design, The SuperPet has two processors, a standard MOS 6502 like all Pet systems, and a Motorola 6809. It could run all the original C-8000 software as well as modern 6809 based compilers and development tools: C, PASCAL, BASIC, APL, FORTRAN, COBOL, Assembler, etc.

The SuperPet was actually built as a programmer's machine allowing developers to work at home and transfer/exchange their files with a mainframe through a true built-in RS-232 interface. A power-on menu gave access to various language packages and several utilities: RS-232 setup, machine language monitor, text editor and terminal program.

Technically speaking, the 6502 and 6809 processors shared the same address and control lines so both CPUs worked on the same memory area except the Kernel ROM that remains independent of each processor.

Commodore 8000 series owners could upgrade their system and make them SuperPets thanks to an optional upgrade package.

Please consider donating your old computer / videogame system to or one of our partners from anywhere in the world (Europe, America, Asia, etc.).


This was the computer I learned programming on in High School. We had 8 of them and a TRS80 I level 3. This was back in 1982 so our teacher found the only textbook he could for us and decided to teach us structured programming using Pascal. He also taught it at a college level plus. When I got to college and took Pascal it was a super easy A. We also had a device that I believe called a muppet which let the SuperPets share drives and printers. I would love to find one or an Emulator and documentation for that machine..

Thursday 19th January 2023
David (USA)


NAME  SuperPet
TYPE  Professional Computer
YEAR  1981
KEYBOARD  Full-stroke 73 keys with numeric keypad
CPU  MOS 6502 and Motorola 6809
SPEED  1 Mhz.
RAM  96 KB
ROM  48 KB (Kernal + CBM BASIC)
TEXT MODES  80 columns x 25 rows - 3 character sets (255 each)
COLORS  Monochrome. Green display
SOUND  1 voice - Three octaves
I/O PORTS  IEEE-488, 2 x 'Datasette', Parallel User port, RS-232, Expansion port
OS  Commodore Kernal and BASIC language
POWER SUPPLY  Built-in power supply unit
PRICE  $2,000

Please buy a t-shirt to support us !
Ready prompt
ZX Spectrum
Arcade cherry
Spiral program
Atari joystick
Battle Zone
Vectrex ship
C64 maze generator
Moon Lander
Competition Pro Joystick
Atari ST bombs
Elite spaceship t-shirt
Commodore 64 prompt
Pak Pak Monster
Pixel Deer
BASIC code
Shooting gallery
3D Cubes
Pixel adventure
Vector ship

Related Ebay auctions in real time - click to buy yours

see more Commodore  SuperPet Ebay auctions !

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -