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Macintosh IIsi

Introduced:October 15, 1990
MSRP:$2999
CPU:Motorola 68030
CPU speed:20 MHz
Shipped with system version:6.0.7
RAM:1 MB, expandable to 17 MB
Discontinued:March 15, 1993

The Macintosh IIsi was a compact 3-box desktop unit, effectively a cut-down Macintosh IIci in a smaller case, made cheaper by the redesign of the motherboard and the deletion of all but one of the expansion card slots. It was introduced as a low-cost alternative to the professional desktop models for home use, but offered more features and performance than the LC series. It had colour and could drive a number of different external monitors, with a maximum screen resolution of 640 x 480 in 8-bit colour.

It shipped with either a 40 or 80MB internal hard disk, and a 1.44 MB floppy disk drive. The MC68882 FPU was an optional extra, mounted on a special plug-in card. Ports included SCSI, ADB and a microphone/sound input socket.