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website/content/museum/commodore-pet-30xx.md
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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---
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.