This computer represents the swan song of the PET line: the failure of the CBM-II and the unstoppable advance of the PC in the business sector forced Commodore to stop the production of these computers. Continue reading
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