Commodore CBM-II

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Commodore CBM-II

Manufacturer	Commodore Business Machines (CBM)
Type	Personal computer
Release date	1982; 42 years ago (1982)
Discontinued	1984; 40 years ago (1984)
Operating system	Microsoft BASIC 4.0
CPU	MOS Technology 6509 @ 1 or 2 MHz, Intel 8088 or Zilog Z80A @ 4 MHz option
Memory	128 or 256 KB
Graphics	VIC-II (320 × 200, 16 colors, sprites, raster interrupt) or 6545 CRTC
Sound	SID 6581 (3× osc, 4× wave, filter, ADSR, ring)
Connectivity	RS-232, A/V, digital tape, ROM cartridge, audio minijack, mains power, parallel IEEE-488 (Commodore floppy drives and printers)
Predecessor	Commodore PET

The Commodore CBM-II series is a short-lived range of 8-bit personal computers from Commodore Business Machines (CBM), released in 1982 and intended as a follow-on to the Commodore PET series.