Macintosh Quadra 660AV


The Macintosh Quadra 660AV is a personal computer designed, manufactured and sold by Apple Computer Inc. from July 1993 to September 1994. It was introduced alongside the Quadra 840AV; the "AV" after both model numbers signifies video input and output capabilities and enhanced audio.
The 660AV was discontinued a few months after the introduction of the Power Macintosh 6100/60AV. Apple also sold a Power Macintosh Upgrade Card that upgraded the 660AV to match the 6100/60AV's specifications for. For users who were not ready to move to PowerPC, the Quadra 630 was also a suitable replacement.

Hardware

The 660AV uses the pizza box form factor of the earlier Centris 610. The 660AV has a full Motorola 68040 instead of the 610's FPU-less 68LC040. Like the 840AV, the 660AV features video input/output capability and an onboard AT&T 3210 digital signal processor to make the video handling less of a burden on the CPU.
The 660AV is also the first Macintosh to include GeoPort; an optional GeoPort Telecom Adapter enables fax and modem capabilities.
Some of the earliest Centris 660AVs have the older auto-inject floppy drive opening similar to the 610, but most of the Centris models and all of the Quadra models have a drive similar to the Power Macintosh 6100, lacking the ‘auto-inject’ feature. These models have a deep round indent at the center of the floppy drive slot to make it possible to insert the disk all the way.
The Quadra AV Macs introduced a new universal ROM that would later be used in all PowerPC systems. It includes SCSI Manager 4.3 and Sound Manager 3.0. It also is "vectorized", making it easier to patch.

Models

Introduced July 29, 1993:
Introduced October 1, 1993: