Commodore 64

Data:
Processor: MOS 6510A later MOS 8502
RAM: 64 kB, 38 kB for Basic v2.0, 50 kB for machine code programs, rest occupied by char-set etc.
ROM: 20 kB
Clock: 1 MHz (NTSC a little bit faster than PAL)
Graphics: 320x200 hires, 160x200 lores, 16 colors, 8 sprites, specialized chip VIC II (6567/69,8562/65 by year)
Music: 3 mono channels, specialized chip SID 6581
Ports: 1 x IEC (serial), 1 x Userport, 1 x Modulport, 1 x Audio/Video, 1 x RGBI, 1 x HF (Antena), 1 x Casette, 2x Joystick, RS 232.

            On photos Commodore 64 (old), Commodore 64 C (version from 1987 stylized on C128 and Amiga 500) and Commodore SX64 (mobile C64 with 1541 disk drive and 5" color monitor).