Commodore Vic20, Vic-20, retro computer, 80's home computer, vintage computer collection, 8 bit

Commodore Vic20

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Il Commodore Vic20 (Vic-20 o Vic 20) è un home computer a 8 bit prodotto dalla Commodore Business Machines a partire dal 1980 fino al 1985. In altri stati era commercializzato con altri nomi: in Giappone si chiamava Commodore VIC-1001, mentre in Germania Commodore VC 20. Evidentemente, in Germania non è possibile dire "Vic" senza fare allusioni che poco sono inerenti ai computer!

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Commodore Vic20, Vic-20, 80s home computer, vintage computer collection, 8 bit

Pur non avendolo mai posseduto da bambino, desideravo collezionare tutti i Commodore ad 8 bit. Dopo l'acquisto del Commodore 64, era naturale cercare anche il Commodore Vic20. Così, a marzo 2020 mi sono messo a cercare questo retro computer su tutti i canali che conoscevo. Ho trovato un computer in buone condizioni, pubblicizzato su Subito.it, a Varese. Il lotto comprendeva il computer, l'alimentatore, il modulatore esterno ed alcune cassette. Era presente anche il polistirolo originale. Sono andato a ritirarlo di persona.

Technical characteristics of the Commodore Vic20

CPU: MOS 6502, 1.108 MHz (PAL version) or 1.023 MHz (NTSC version)

ROM: 20 KB

RAM: 5 KB (expandable via expansion port)

Graphics: MOS VIC-I (6561)

Text mode: 22×23 characters

Graphics mode: 176×184 pixels, up to 16 colors

Audio: generated by the same VIC-I

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ValorosoIT Commodore Vic20 Vic-20 PCB mainboard motherboard electronic

Keyboard: 66-key QWERTY, with function keys

Software included in ROM: BASIC 2.0

Commodore Vic20, Vic-20, rear ports, expansion port, monitor, RF, datassette, IEC floppy disk drive, user port, 8-bit

Expansion ports:

  • 1 Expansion port (for cartridges and RAM)
  • 1 Audio/Video (CVBS and S-Video composite video)
  • 1 IEC Serial
  • 1 Datassette port (cassette player)
  • 1 User Port
  • 1 joystick port
Commodore Vic20, Vic-20, joystick port, power connector, power button, 8-bit, control port, ON, power

Emulation

It is possible to emulate the Commodore Vic-20 on a common Windows PC, through the VICE. In this way, it is possible to try to start programs and games, as well as program the back computer, in a simple and comfortable way ... without even having the VIC20!

Power supply of the Commodore Vic-20

The power supply of the Commodore Vic 20 is external and has the following output voltages:

  • 5V DC, 1.5A
  • 9V alternating current, 1A

E' equivalente e intercambiabile all'alimentatore del Commodore 64.

Pinout pins round DIN connector power supply power supply C64 Commodore 64 Vic20
Power Supply, Transformer, Commodore 64 C64,boot 5V 9V, part no 902 503 - 06, BV 830 810.01, ismet T40/E

Commodore Vic20 boot screen

The startup screen of the vintage computer is blue. The image is available at the Audio/Video output. To display it via RF (analog television, channel 36) you need an external modulator.

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Papers

1. Commodore Vic20 guida facile al computer (ITA)

2. Commodore Vic 20 friendly computer guide

3. Commodore Vic20 technical manual

Collection entry date: 04/03/2020

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