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Hardware - Commodore Plus/4
Name:Commodore Plus/4
AKA:Plus 4, +4, C= +4
Category:Computer
Introduced:1984
Manufactured:Commodore Business Machines (UK) Ltd. (CBM)


This hardware contains
MOS 7360/8360 (Chip) [ edit ]
MOS 7501/8501 (Chip) [ edit ]
C317053-01 (Chip) [ edit ]
C317054-01 (Chip) [ edit ]
C251641-02 (Chip) [ edit ]
C318004-05 (Chip) [ edit ]
C318006-01 (Chip) [ edit ]
MOS 6529B (Chip) [ edit ]
C318004-04 (Chip) [ edit ]


Commodore Plus/4
(*)64K RAM (60K available for BASIC
(*)programming)
(*)Full Typewriter Style Keyboard
(*)Optional Built-in Software
(*)Screen Window Capability
(*)HELP Key
(*)8 Pre-programmed, Reprogrammable
(*)Function Keys
(*)Four Separate Cursour Keys
(*)Uses Most COMMODORE 64 and VIC-20
(*)Peripherals
(*)121 Colors (16 primary colours, 8
(*)luminance levels)
(*)Over 75 BASIC Commands
(*)High Resolution Graphics Plotting
(*)Split-Screen Text With High-Res Graphics
(*)Graphics Character Set On Keyboard
(*)Keyboard Color Controls
(*)320 x 200 Pixel Screen Resolution
(*)Reverse and Flashing Characters
(*)2 Tone Sound Generators
(*)Built-In Machine Language Monitor
(*)(17 commands)


Case Design
The case designing had been worked out by Ira Velensky, who also designed the Commodore 116 case. Ira moved to Atari in the mid-80s and was the designer on the ST and XE computers as well.

Bil Herd says:
"The design [of the Plus/4] was by a guy named Ira Velinsky who worked out of the Tokyo office. He had designed the case for the DEC Rainbow prior to coming to Commodore. Sadly Ira passed away on the return trip from a CES show some years later."


Hardware (owned by members)
HardwareCountrySerial NumberConditionStatusOther DataNotes
Gaia West-GermanyDA4 13 512Connector: Rectangle
Gaia West-GermanyDA4 80 930Connector: Rectangle
TrondDead as a door nail.C64 power connector.
Trond JapanAA4 000133[ front ] [ label ] [ inside ]
Csabo West-GermanyDA4 146 509Connector: RectangleUntested
SpektroEA5 243874Good
SpektroEA4 170336PoorWorking but slightly damaged keyboard cable. Power source's bottom plate is broken.
Ati West-GermanyDA4 01912good with boxworking with new8501from my childhood :)
Retroshire
siz West-GermanyDA4 142413good, boxed (my firsworkingPower connector: round
Ati West-GermanyDA4 11575good with boxworking
Dan Wood EnglandEA4 220850Connector: Rectangle[ Source ]
Matteo Turchi[ Source ]
Bob Mockford EnglandEA4 227151[ Source ]
Bob Mockford EnglandEA4 228365[ Source ]
Bob Mockford EnglandEA5 198388[ Source ]
Ville JouppiCA 1154917MintNTSC [ Source ]
Ville JouppiDA4 55131Mint[ Source ]
Danish Data History Association EnglandEA4 207510[ Source ]
Raúl Alves Santos EnglandEA4 184868Working[ Source ]
The-Liberator.net EnglandEA4 189569[ Source ]
Juha Kouri[ Source ]
James S[ Source ]
York University Computer MuseumCA 1043221[ Source ]
Steven CombsCA 1204966[ Source ]
George
LitwrI used it in 1987-91, I sold it in 1991It worked good. I bought it in Poland.
TLC West-GermanyDA4 12373Project machine, various hardware hacks, resurrected from wreckage.
Probably one of the computers from the 1986 Hungarian school computer program.
TLC EnglandEA4 236551A stock Plus/4 that I keep as reference. Bought in 1995 "for parts or not working".
TLC USACA1159025NTSC.
SyamiManDA4 132988Working[ Source ]
SukkoPera
PARALAX
33 found.


The Commodore Plus/4
The Commodore Plus/4


Right Side View
Right Side View


Left side view
Left side view


Back View
Back View


Trademark
Trademark
This document testifies to the choice of the "Plus / 4" trademark.


Plus/4 Magazine Advertisment
Plus/4 Magazine Advertisment
Click here for large version (360 Kb)


Plus/4 TV Commercial
Plus/4 TV Commercial
A TV commercial for the Plus/4 produced by US based liquidator Urban General.
Click here to view the commercial (MPEG, length 1:00, size 4MB)


Early Commodore Plus/4
Early Commodore Plus/4
Rob Clarke has found this Plus/4 model with serial number "AA1 000023" and a sign about the lack of FCC approval yet. It also shows a couple of red stickers relative to the FCC approval reached.

Bil Herd has commented:"Ah, now I remember. This was one of the units I took to Radiation Sciences in Harleysville PA. Basically spent a week as we scanned all of the configurations, passed, and submitted to FCC. The asset tag thing would be how it was identified so I could carry it out the front door.".

Copyright © Plus/4 World Team, 2001-2024