--- title: Commodore PET 30xx categories: - Computers types: - Professional Computer origins: - U.S.A. years: - '1979' cpus: - '6502' params: name: PET 30xx image: /media/museum/photos/commodore_cbm-3032_1.jpg company: /companies/commodore company_name: Commodore specs: - label: NAME value: PET 30xx - label: MANUFACTURER value: Commodore - label: TYPE value: Professional Computer - label: ORIGIN value: U.S.A. - label: YEAR value: '1979' - label: BUILT IN LANGUAGE value: Commodore Basic - label: KEYBOARD value: QWERTY full-stroke keyboard, and sometimes calculator type - label: CPU value: '6502' - label: SPEED value: 1 mHz - label: RAM value: 8, 16 or 32 k - label: ROM value: 14 k - label: TEXT MODES value: 40 x 25 - label: GRAPHIC MODES value: None - label: COLORS value: monochrom - label: SIZE / WEIGHT value: Heavy ! - label: I/O PORTS value: IEEE 488, Tape (2) - label: POWER SUPPLY value: Built-in PSU tabs: - photos - adverts - hardware - software - emulators - links - docs forum_thread: 116 photos: - title: ADDON KEYBOARD subtitle: '' text: This picture shows a PET-30xx with an addon keyboard mounted on top of the original one. image: /media/museum/photos/commodore_pet-3000_1.jpg adverts: - title: FRENCH ADVERT (MAY 1980) subtitle: '' text: for the Commodore PET 3001 image: /media/museum/pubs/commodore_cbm3001_pub_p.jpg hardware: - title: CLOCK/CALENDAR MODULE subtitle: '' text: Could be connected to any PET/CBM user port. Clock and calendar were battery backed up. image: /media/museum/hardware/commodore_pet_clockmodule_1.jpg - title: EPROM PROGRAMMER subtitle: '' text: Could burn 2716 and 2732 Eprom chips. image: /media/museum/hardware/commodore_pet_epromprog_1.jpg - title: TNW-2000 subtitle: IEEE-488 to Serial converter text: Thanks to **Pascal Rollin** image: /media/museum/hardware/commodore_pet_tnw2000_1.jpg - title: DUAL DISK-DRIVES subtitle: Model 2040 text: This dual 5.25" floppy disk is single sided, double density and has a storage capacity of 170 Kb per disk, or 360k total. It's connected to the computer through an IEEE-488 interface and uses CBM DOS 1.0. image: /media/museum/hardware/commodore_cbm2040-dualdisks_1.jpg - title: 8050 DUAL DISK-DRIVE subtitle: '' text: |- CBM PET Model 8050 Dual disk drive. It uses a 100 TPI single headed drive with a storage capacity of 533,248 bytes per drive. Each 8050 disk has 77 tracks, and is read/write compatible with the model 8250 disk. This compatibility is limited to one side of the diskette. It can be used with Commodore Series 2001, Series 3000, Series 4000 and Series 8000. It uses an IEEE-488 interface. image: /media/museum/hardware/commodore_cbm_8050_diskdrives.jpg - title: 8250-LP DUAL DRIVE UNIT subtitle: '' text: The 8250-LP (for Low Profile) uses dual half-size double-side, double-density 1 MB capacity floppy drives. The main logic board is entirely different from the full-size 8250. It uses two 6502 processors! image: /media/museum/hardware/commodore_700_8250fddunit_1.jpg - title: 9090 HARD-DISK subtitle: '' text: This is a single drive non-removeable Winchester technology storage device. It features 3 platters with recording surfaces on both sides and provides 7.5 million characters of storage. A single random access file may occupy the entire capacity. It has an IEEE interface connector and a "slow blow" fuse on the back. image: /media/museum/hardware/commodore_cbm_9090_harddisk.jpg - title: 8023P COMMODORE TRACTOR PRINTER subtitle: '' text: '' image: /media/museum/hardware/commodore_printer_8032p.jpg emulators: - title: Versatile Commodore 8-bit Emulator (VICE) url: http://www.6502.org/users/andre/index.html platform: Windows text: '' links: - title: Larry's PET/CBM Pages url: http://www.portcommodore.com/petindex.php?path=main-cbmidx text: Excellent source of information for PET/CBM computers - title: PET index url: http://www.6502.org/users/andre/petindex/index.html text: Some useful info here about PET computers - title: The Commodore CBM-II page url: http://ca.geocities.com/SJGRAY@ROGERS.COM/CBM/ text: All things CBM-II - title: THE Independent Commodore Library url: http://freespace.virgin.net/ken.ross1/ text: All sorts of programs here, text files covering a wide range of subjects - title: TPUG - Toronto PET Users Group Inc. url: http://www.tpug.ca/ text: The Commodore PET Users Group, founded in 1979 ! (seems offline, mail us their new address if you find it) - title: www.commodore.ca url: http://www.commodore.ca/products/pet/commodore_pet.htm text: Excellent site with a lot of info about Commodore computers including dedicated PET pages - title: Web Wiz CAPTCHA url: http://www.webwizcaptcha.com text: Discussion about Commodore micros docs: - title: COMMODORE BASIC VERSION 4.0 - USER'S REFERENCE MANUAL url: http://www.commodore.ca/manuals/default.htm cover: /media/museum/docs/couvs/commodore_basic_4_users_reference%20manual.jpg text: |- [**COMMODORE BASIC VERSION 4.0 - USER'S REFERENCE MANUAL**](http://www.commodore.ca/manuals/default.htm)written by Commodore  compiled/archived by www.commodore.ca\  type of document : PDF\  source : [www.commodore.ca](http://www.commodore.ca) - title: COMMODORE PET MACHINE LANGUAGE MONITOR url: http://www.commodore.ca/manuals/default.htm cover: /media/museum/docs/couvs/pet_machine_language_monitor.jpg text: |- [**COMMODORE PET MACHINE LANGUAGE MONITOR**](http://www.commodore.ca/manuals/default.htm)written by Commodore  compiled/archived by www.commodore.ca\  type of document : PDF\  source : [www.commodore.ca](http://www.commodore.ca) related: - /museum/commodore-cbm-500-600-series - /museum/commodore-cbm-700-series - /museum/commodore-cbm-80xx - /museum/commodore-pet-200 - /museum/commodore-pet-2001 - /museum/commodore-pet-cbm-40xx - /museum/commodore-superpet software: - /software/space-invaders-669 oc_id: 102 source: url: https://web.archive.org/web/20230601095109/http://www.old-computers.com/museum/computer.asp?c=102 date: '2023-06-01' --- The CBM 3xxx and 4xxx series were revisions of the original PET 2001.\ The range was rebranded CBM (Commodore Business Machine), as PET was dropped. The 3xxx series introduced the 3000 series ROM sets, BASIC v3, and a completely redesigned keyboard layout, which used a full typewriter keyboard instead of the "mickey mouse" keyboard of the PET, and dropped the on-board cassette unit.