The CBM-3000 series came as a successor in 1979. They had a bigger memory, better BASIC 2.0 and an improved and larger keyboard. The datasette now had to be connected externally. Later the CBM-4000 (40 character representation) and the CBM-8000 series (80 character representation) were developed, which had a larger 12 inch monitor and BASIC 2.0. The following CBM-II series were not that popular and Commodore concentrated more on the homecomputers and Amiga, leaving the business market and PET series behind. One million PET and CBM computers were sold worldwide until 1985. Production was finally stopped at the end of the 1980s.
Commodore took care of the simple operation of the computer. The PET was supplied with a monitor, a keyboard, a record for data exchange, and a power supply in a housing. The only thing that had to be connected was the cable for the power supply. The design of the solid metal housing is unique and has a high recognition value.
Due to the C2N data record, which was built-in to the left side of the device, there was little space for the keyboard. Although it featured a separated numeric keypad, the keys were very small and compareable to those used on pocket calculators, arranged directly below each other.
On the back the connections for another external cassette recorder and a user port for various extensions and control purposes. Printers or floppy drives can be connected to the IEEE 448 port. On the right side of the PET is another expansion port (e.g. memory expansion). In addition to a fuse, the fixed mains cable and the on / off switch are located on the back of the unit. The device was manufactured in America, the exact type is "PET 2001-8C". The brightness of the monitor can also be adjusted via a rotary switch.
A small special feature is the opening of the device, which can easily be folded backwards. Similar to a hood of a car, the device is held open by a rod so that it can be maintained. The power supply is located at the rear.
The card requires 16 "MOS 6550" RAM ICs for 8 kB of memory located at the front. Two more 6550 serve as screen memory. Behind it are some ROM chips, which contain e,g, the BASIC and characters. The CPU 6502, two 6520 PIA and a 6522 VIA complete the important ICs on the PET board. In particular, the RAM and ROM ICs, contact problems on the sockets, and the old electrolytic capacitors in the power supply are a common problem on PET computers.
Commodore bought the BASIC from Microsoft and built it into the PET 2001. A special feature back then was the integrated BASIC in the ROM chips that was available immediately after the computer was switched on. So it was easier to use (not has to be loaded separately), but harder to updates (exchange of the chips was needed). Because there were no floppy disk drives when the PET was released, Commodore did find out later that BASIC 1.0 did not work with them, so computers needed an upgrade to BASIC 2.0 to use the disk drives that came out in 1979. This upgrade could be purchased separately. In addition to the letters and numbers, you can use so-called PETSCII characters to create graphics easily.
|Launch Price:||595 USD (4 kB)
795 USD (8 kB)
|Processor:||MOS 6502 (1 MHz)|
|Operating system:||BASIC 1.0|
|Size:||450 x 480 x 420 mm|
|Sold:||1 Million (all PET models until 1985)|
The above shown computers are in the collection!
Compatible drives for the computer PET 2001: