Commodore PET

Model summary Edit

PET 2001 series / 2001-N & -B series, CBM 3000 series Edit

CPU: 6502, 1MHz

RAM: 4, 8, or 16kB / 8, 16, or 32 kB

ROM: 18 kB, including BASIC 1.0 / 20 kB, including BASIC 2.0

Video: MOS 6545, 9" monochrome monitor, 40×25 character display

Sound: none / single piezo "beeper"

Ports: 2 MOS 6520 PIA, MOS 6522 VIA, 2 Datassette (1 used / 1 on the back), 1 IEEE-488

Notes: 69 key chiclet keyboard and built-in Datassette / full-sized, full-travel keyboard, no built-in Datassette

PET 4000 series / CBM 8000 series Edit

CPU: MOS 6502, 1MHz

RAM: 8, 16, or 32 kB / 32 or 96 kB

ROM: 20K, including BASIC 4.0

Video: MOS 6545, 9" or 12" / 12" monochrome monitor, 40×25 / 80×25 character display

Sound: single piezo "beeper"

Ports: 2 MOS 6520 PIA, MOS 6522 VIA, 2 Datassette ports (1 on the back), 1 IEEE-488

Notes: basically an upgraded 2001 / basically a 4000 with 80 columns and slightly different keyboard with smaller (11 key) numeric pad

SuperPET 9000 series Edit

CPU: MOS 6502 and Motorola 6809, 1MHz

RAM: 96 kB

ROM: 48 kB, including BASIC 4.0 and other programming languages

Video: MOS 6545, 12" monochrome monitor, 80×25 character display

Sound: single piezo "beeper"

Ports: MOS 6520 PIA, MOS 6522 VIA, MOS 6551 ACIA, 1 RS-232, 2 Datassette ports (1 on the back), 1 IEEE-488

Notes: basically an 8000 with ROMs for programming languages, it also had three character sets, and an RS-232 for use as a terminal

PeripheralsEdit

Commodore Business Machines made a variety of disk drives available for the PET, using the IEEE 488 interface, including:

Commodore 2031 single disk drive

Commodore 4040 dual disk drive

Commodore 8050 dual disk drive

Commodore 8250 "quad density" dual disk drive

Commodore 8280 dual disk drive (8")

Commodore SFD-1001 "quad density" single disk drive

Commodore 9060 hard drive (5 megabytes)

Commodore 9090 hard drive (7.5 megabytes)