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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
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---
title: Commodore C64G
categories:
- Computers
types:
- Home Computer
origins:
- Germany
years:
- '1989'
cpus:
- MOS 8500
params:
name: C64G
image: /media/museum/photos/commodore_64g_system_s1.jpg
company: /companies/commodore
company_name: Commodore
specs:
- label: NAME
value: C64G
- label: MANUFACTURER
value: Commodore
- label: TYPE
value: Home Computer
- label: ORIGIN
value: Germany
- label: YEAR
value: '1989'
- label: BUILT IN LANGUAGE
value: Commodore BASIC V2
- label: KEYBOARD
value: Full-stroke 66 keys with 4 function keys
- label: CPU
value: MOS 8500 (HMOS version of the 6510)
- label: SPEED
value: 0.985 MHz (PAL) / 1.023 MHz (NTSC)
- label: CO-PROCESSOR
value: VIC II (Video),MOS 8580 SID-chip (sound & music), MMU (memory management)
- label: RAM
value: 64 KB
- label: ROM
value: 20 KB
- label: TEXT MODES
value: 40 columns x 25 lines
- label: GRAPHIC MODES
value: 'several, most used : 320 x 200'
- label: COLORS
value: 16 + 16 border colours
- label: SOUND
value: 3 voices / 9 octaves, 4 waveforms (sound output through TV)
- label: SIZE / WEIGHT
value: 40.4 (W) x 21.6 (D) x 7.5 (H) cm / 1820 g
- label: I/O PORTS
value: RGB (composite, chroma/luma and sound in/out), 2 x Joystick, Cardridge slot, Tape interface (300 bps), Serial, User Port, TV RF output
- label: BUILT IN MEDIA
value: External cassette unit or 170 KB 5.25'' floppy disc unit (1541)
- label: POWER SUPPLY
value: External power adaptor
- label: PRICE
value: Unknown
tabs:
- photos
- hardware
- emulators
- links
- videos
photos:
- title: C=64G
subtitle: ''
text: ''
image: /media/museum/photos/commodore_64g_system_s2.jpg
- title: RIGHT SIDE
subtitle: ''
text: Power switch, power DIN socket and joystick DB9 connectors are on the right side.
image: /media/museum/photos/commodore_64g_rightside_s1.jpg
- title: LEFT SIDE
subtitle: ''
text: ''
image: /media/museum/photos/commodore_64g_leftside_s1.jpg
- title: REAR CONNECTORS
subtitle: ''
text: |-
Same connectors as the standard C64, from left to right:\
• Programmable Expansion port / cartridge slot\
• TV channel adjustment\
• RF/TV aerial video output\
• Audio-Video RGB output\
• Programmable Serial DIN socket\
• Tape recorder connector\
• Programmable IEEE488 user port.
image: /media/museum/photos/commodore_64g_rearconnectors_s1.jpg
- title: MOTHERBOARD
subtitle: ''
text: |-
This board (latest revision) was also used in the 64GS game console.
**(1)** Expansion port / Cartridge slot cover\
**(2)** Keyboard connector\
**(3)** First CIA Chip (Communication interface adaptor), provides serial communications\
**(4)** UHF/TV modulator\
**(5)** SID sound chip (Sound Interface Device)\
**(6)** System clock generator\
**(7)** VIC II CRT controller (Video Interface controller)\
**(8)** MMU chipset (Memory management Unit)\
**(9)** MOS 8500 processor, an evolution of the 6510 CPU\
**(10)** 64 KB RAM chips (2x2464)\
**(11)** First ROM chip, holds the Commodore BASIC and Kernel\
**(12)** Second ROM chip, holds the character generator\
**(11)** Second CIA chip.
image: /media/museum/photos/commodore_64g_inside_s1.jpg
- title: BOX
subtitle: ''
text: ''
image: /media/museum/photos/commodore_64g_box_1.jpg
- title: 'BOX #2'
subtitle: ''
text: ''
image: /media/museum/photos/commodore_64g_box_2.jpg
hardware:
- title: 1530 C2N
subtitle: Tape-recorder
text: The classic Commodore tape-recorder !
image: /media/museum/hardware/commodore_c64_tape-recorder-1530-c2n_1.jpg
- title: CMD SUPERCPU
subtitle: ''
text: |-
The SuperCPU by Creative Micro Devices is an accelerator cartridge for the Commodore 64. It contains an W65C816S processor running at 20 MHz, providing 20 times the performance of the stock 6510 processor! CMD later added a SuperRAM Card option that could include up to 16 MB of additional memory. There is also a v2 version that offers native 128 mode support (also called SuperCPU/128). It is one of the most sought-after Commodore peripherals.
Thomas Conté
image: /media/museum/hardware/c64_supercpu.jpg
- title: CMD RAMLINK
subtitle: ''
text: |-
This RAM expansion unit by Creative Micro Devices was intended to be used as a RAM drive to accelerate disk access. It is externally powered, and thus will preserve the data even when the computer is turned off.
Thomas Conté
image: /media/museum/hardware/c64_cmd_ramlink.jpg
- title: FLOPPY DISK UNIT 1540-1541
subtitle: ''
text: |-
It is connected to the C64 via a serial link.\
It is very very slow and can store 170 kb per disk.
image: /media/museum/hardware/commodore-diskdrive_1540_1.jpg
- title: QUICK DATA DRIVE
subtitle: ''
text: |-
**Cheaper and faster than diskettes.**
This Quick Data Drive from Dean Electronics is dedicated to Commodore 64 and &lt;$252$>Vic 20 systems. It uses a special tape called 'Wafer', of 16, 64 or 128 Kb capacity. This wafer was also used by a product marketed for the &lt;$223$>Sinclair Spectrum, called Wafadrive. Various tests proved that the Q.D.D. was approximately 20 times faster than a normal cassette recorder and 2 or 3 times faster than the Commodore 1541 disk drive. The reason : data transfer routines (called QOS) much more efficient than those of Commodore, and a file management operating system (FMU) much more modern and powerful.
The Q.D.D. is however not more than an advanced tape recorder using a magnetic tape, and the delay to access a specific file still remains higher than with a normal disk drive. Despite its qualities, the Q.D.D. did not meet success because most C64 software was sold on disks or tapes and users had to acquire both Commodore peripherals before investing in a third powerful storage system.
image: /media/museum/hardware/commodore_64_quick_data_1.jpg
- title: CMD HD-20
subtitle: 20Mb hard-drive
text: This is a hard drive for the C64 or 128. SWAP-Devicenumber-Buttons let the HD become drive 8 or 9. It can create sub-directories and partitions, including 1541 emulation.
image: /media/museum/hardware/commodore_c64_cmd-hd20_1.jpg
- title: VICMODEM
subtitle: Advert
text: You could already send emails !!
image: /media/museum/hardware/commodore_vicmodem_pub_1.jpg
- title: WERSIBOARD MUSIC 64
subtitle: ''
text: Thomas Conté
image: /media/museum/hardware/c64_wersiboard.jpg
- title: MODEL 1525
subtitle: ''
text: It can print all the semi graphic characters of the C64. (30 characters per second)
image: /media/museum/hardware/commodore_printer_1525_1.jpg
emulators:
- title: CCS64
url: http://www.ccs64.com/
platform: Windows
text: The best C64 emulator for the PC
- title: Free64
url: http://www.umr.edu/~bmartin/
platform: Windows
text: A Freeware emulator for MS DOS
- title: MESS
url: http://www.mess.org
platform: Windows
text: This fantastic emulator can emulate the mlost of the 8-bit Commodore systems
- title: Win 64
url: http://www.geocities.com/SiliconValley/Park/6558/win64.htm
platform: Windows
text: The Best C64 Emulator for Win95 / WinNT
- title: Win64
url: http://www.geocities.com/siliconvalley/park/6558/win64.htm
platform: Windows
text: Good Commodore 64 for Windows
- title: Mac Frodo
url: http://internetter.com/titan/macfrodo/
platform: Apple
text: The MAC OS version of Frodo, one of the best C64 Emulator
- title: Power 64
url: http://www.infinite-loop.at/Power64/index.html
platform: Apple
text: Emulator for PPC Macintoshes
- title: SID PLay
url: http://stud1.tuwien.ac.at/~e9426444/sidplay/
platform: Apple
text: A player for C64 Musics
- title: ccs
url: http://www.funet.fi/pub/cbm/crossplatform/emulators/unix/
platform: Unix / Linux
text: C64 emulator for Unix
- title: Frodo for Amiga OS
url: http://www.uni-mainz.de/~bauec002/FRMain.html
platform: Amiga OS
text: The best C64 Emulator for Amiga
- title: VICE for Amiga OS4
url: http://amidog.se/amiga/vice/
platform: Amiga OS
text: This AmigaOS4 version is ported by Mathias "AmiDog" Roslund
- title: c64.gr
url: http://www.c64.gr/
platform: Other platform
text: C64 online emulator. Play favorite games in your browser!
- title: C-ONE
url: http://c64upgra.de/c-one/
platform: Other platform
text: Hardware emulator (re-configurable computer)
- title: Frodo for PalmOS
url: http://frodopalm.sourceforge.net/
platform: Other platform
text: Frodo for PalmOS
- title: VICE
url: http://viceteam.bei.t-online.de/
platform: Other platform
text: Emulates the C64, C128, VIC20, all the PET models and the CBM-II under Unix, MS-DOS, Win95/NT, OS/2, Acorn RISC OS or BeOS !!
- title: Web C64
url: http://www.dreamfabric.com/c64/
platform: Other platform
text: The 64 as a Java applet in your Browser. Excellent !
- title: C=64 Emulator for OS/2 Full Screen
url: http://home.hccnet.nl/w.m.brul/emulator/index.html
platform: OS2
text: Freeware emulator for OS/2
links:
- title: C64.COM
url: http://www.c64.com/
text: Excellent and beautifully designed site, full of games to download. A must
- title: c64.gr
url: http://www.c64.gr/
text: C64 online emulator. Play favorite games in your browser!
- title: 'c64files.com :: the ultimate C64 portal!'
url: http://www.c64files.com/
text: News, Gaming, Music, Museum, Links etc.
- title: Commodore 64 -
url: http://folkvagn.commodore64.org
text: Info about the C64 and successors, C64 emulators and the SID chip. Also contains C64 programs and a forum. In Swedish only.
- title: Commodore 64 Game Endings
url: http://www.c64endings.co.uk/
text: All your fave C64 game endings under one roof.
- title: Commodore 64 Nostalgia
url: http://www.staggs.pair.com/c64/
text: ''
- title: Commodore Scene Magazine and Importing Service
url: http://www.commodorescene.org.uk/
text: New publications, hardware and software for the Commodore 128/128d and C64
- title: Commodore Service Manuals
url: http://www.devili.iki.fi/Computers/Commodore/
text: Commodore Service Manuals & other stuff
- title: Commodore-64 Programmer's Library
url: http://home.comcast.net/~c64proglib
text: many of Robert Baker's early original magazine articles, programs and programming tips (not free)
- title: Commodore-related Net Resources
url: http://www.hut.fi/~msmakela/cbm/netresources.html
text: ''
- title: Good Old Games
url: http://speccy.altervista.org/
text: Many games with screenshot comparisons, download and magazines
- title: Greg and David's C64 Web page
url: http://www.ozemail.com.au/~gvincent/
text: ''
- title: HV C64 CD's - The ultimate CD set full of software for the C64
url: http://www.talent.demon.co.uk/64/
text: ''
- title: LEMON 64
url: http://www.lemon64.com/
text: The source for all Your Commodore 64 Gaming and News needs ! Quite impressive !!!
- title: Mayhem64
url: http://www.mayhem64.co.uk/main.htm
text: For all your C64 cartridge needs... and more!
- title: Remixes of music from C-64 games
url: http://remix.kwed.org
text: Hear the tunes from your fav C64 games like you've never heard them before!
- title: Stadium 64
url: http://s64.emuunlim.com/
text: Are you a sportgaming fan? Then this site is definitely for you! Over 1000 sportgames available for download. Lots of manuals, reviews, covers, adverts, screenshots, hints&tips, world records + a lot more!
- title: The Commodore 8-bit WWW server
url: http://www.hut.fi/~msmakela/cbm/
text: ''
- title: The Secrets Weapons of Commodore
url: http://www.floodgap.com/retrobits/ckb/secret/
text: Awesome website ! Presents all the weird systems imagined by Commodore.
- title: The Star Commander homepage
url: http://sta.c64.org/sc.html
text: ''
- title: Web Wiz CAPTCHA
url: http://www.webwizcaptcha.com
text: This is a bulletin board run on a Commodore 64!
videos:
- title: C64 assembly line pictures!
url: https://www.youtube.com/watch?v=6vzfJLVS2YI
text: 'Length: 6 min 56 s'
related:
- /museum/commodore-c128-c128d
- /museum/commodore-c64
- /museum/commodore-c64-aldi
- /museum/commodore-c64-golden-jubilee
- /museum/commodore-c64c
- /museum/commodore-educator-64
- /museum/commodore-lcd
- /museum/commodore-sx-dx-64-executive-computer
- /museum/commodore-vic-1001
- /museum/eds-c64-edc
oc_id: 1136
source:
url: https://web.archive.org/web/20230610110034/http://www.old-computers.com/museum/computer.asp?c=1136
date: '2023-06-10'
---
The last model of the C64 to be sold was the 64G. It had the original "breadbin" case, but the color was much lighter, pretty much the same as on the [64C](/museum/commodore-c64c/) model, to match the tastes of the moment.
The keyboard could either be the original black model with graphical symbols on the front side of the keys or the cream colored c-model type with the symbols on top of the keys. It seems that Commodore just tried to use up all the parts that they had in stock which resulted in all kinds of weird color combinations. The motherboard was a small and simplified one, very similar to the the one found in the [Aldi](/museum/commodore-c64-aldi/) version, though some C64G are reported with more older classic C64 motherboards in them...
The SID chip used here is a MOS 8580 version, resulting in sampled sound playing on very low volume. The reason comes from a bug in the older 6581 SID that was removed in the 8580. Eventually a solution was found by grounding one leg of the 8580 through a resistor.
Some of these machines were made from [C=64GS](/museum/commodore-c64-gs-games-system/) game console parts when the console bombed. Most were sold with a game pack (some magazine adds show the same game module as with the GS) and was marketed almost as a pure game console which just happened to have a computer in the same package. The G-model kind of replaced the horrible GS.
Build quality is not very good, especially the case feels quite brittle. The model sticker says "Made in W. Germany", but the motherboards were probably made in Hong Kong in the same factory as the C-model machines and only final assembly was made in Germany. The machine was probably only aimed at the European market.
The G-model was clearly a final cheap gaming computer that Commodore made to get rid of the huge stocks of C=64 spares and GS-parts. It was sometimes also named **c64-III** or **C64 BN/E**.
Thanks to **Taneli Lukka** and [Roman von Wartburg](http://retrocomputing.ch/) for information and pictures