Tag Archives: Commodore

Commodore 4040 dual drive floppy disk (1980)

Commodore 4040 - Front

This is one of the floppy drive models marketed by Commodore for its business line of computers. Before turning it on I made a thorough cleaning, but when I tested it, it didn’t work properly. For example, the command to list the content of a floppy disk showed the wrong characters and after a few attempts nothing was displayed at all. I started to try all the socketed ICs on other drives to search for the fault, but they were all working; then I re-connected the drive to a PET and it functioned perfectly. Probably a few IC pins were oxidized. Continue reading

Commodore MMF 9000 / SuperPET (1981)

Commodore MMF9000 (SuperPET)

At the end of 2013 I was having dinner with a friend who owns an MMF 9000 (MMF stands for Micro MainFrame, the computer is known as SuperPET in the States), and I asked him if he could lend it to me so I could take some pictures. But by an incredible coincidence, a couple of days later I was told (thanks Marco!) about an identical computer for sale 40 Km from where I live. I called the phone number on the classified ad and on the very last day of the year I went to take a look at the computer. It worked and had all the add-on boards (two of them, it’s the first revision) that make this computer special.

I bought it for a very reasonable price and I decided to take some pictures to document this rare computer. Continue reading

Commodore VIC 20 (1981)

Commodore VIC 20

Sometimes computers come unexpectedly from friends, relatives or unknown people that contact me on the site: a surprise and a discovery. Other times I actively dig the web – sites, classifieds, forums, auctions – to look for a particular piece I’d like to have. This VIC 20 belongs to the second category: I was searching for the very first model of this computer – also known as the “PET style keyboard” VIC 20 – and the most difficult task wasn’t finding it, but finding it at the right price.

Continue reading