power supply : commodore external 5vdc and 9vac transformer cpu: mos 6510 sound chip: sid 6581 ram: 64kbyte ram memory rom: 20kbytes (8k basic + 8k kernal + 4k character set) clock mpu: 0.985 mhz in pal mode and 1.02 mhz in ntsc mode basic version: commodore basic v2 video out: one rf video output and one rgb pal video output 320x200 resolution at 16 colors vic-ii graphics mode serial port: one serial port used for disk drive 1001, 1541, 1581, 1571 and printer commodore mps 801 or similar expansion port: two memory expansion ports also used for cartridges game recorder port: one port for commodore datassette c2n or commodore 1530 white color version joystick port: two 9-pin joystick ports keyboard: 62 keys dimensions: 410 x 207 x 75 weight : 1.8 kg