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
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
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.