The Commodore 64, also known as the C64, C-64, C= 64 or occasionally CBM 64 or VIC-64 is an 8-bit home computer introduced in January 1982 by Commodore International. It is listed in the Guinness Book of World Records as the highest-selling single computer model of all time with independent estimates placing the number sold between 10 and 17 million units.

Technical Specifications
Processor: 6510, VIC II (Video), SID (sound)
ROM: 20 Kb
RAM: 64 Kb
Display: Television or Monitor
Text display: 40 Columns x 25 Lines
Graphics display: Most programs used 320 x 200, other modes were available.
Colours: 16 screen colours , 16 border colours
Sound: SID Chip, 3 Voices, 9 Octaves, 4 Waveforms, Output through Television speaker
Keyboard: Full Stroke 66 key keyboard with 4 function keys
Interface: RGB (composite, chroma/luma and sound in/out),
cartridge slot, 300bps cassette tape
Interface: interface, 2 joystick ports, serial port, user port, Television RF Output
Data Storage: Cassette tape, Cartridge, 3.5” and 5.25” disk drive
Power Supply: External power supply
Software: Literally thousands of games were available.

NOTES:- Please turn off system before removing/replacing cartridge