The Quadra 650 had tray-loading CD-ROM drive. The Macintosh Quadra 650 and the Macintosh Centris 650 are two closely-related personal computers that are a part of Apple Computer's Quadra and Centris series of Macintosh computers, respectively. When the Centris 650 was introduced in February 1993 alongside the smaller Centris 610, it was intended as the start of the new midrange Centris line of computers, a niche formerly occupied by the Quadra 700 which was discontinued. However, that proved confusing, and the Centris 650 was renamed to Quadra 650 in October 1993, with the CPU upgraded from a 25 MHz to 33 MHz. The Quadra 650 was discontinued without a direct replacement in September 1994, although the Power Macintosh 7100, introduced a few months earlier, which used the same case as the 650 (originally used on the Macintosh IIvx), had a similar target audience.

Introduction Date:  October 21, 1993  Discontinued Date:  September 12, 1994 
Processor Type:  68040  Processor Speed:  33 MHz 1. 
Processor Upgrade:  N/A 2.  FPU (Integrated):  68040 
System Bus Speed:  33 MHz  Lookaside Bus Speed:  N/A 
ROM Size:  1 MB  Data Path:  32-bit 
Level 1 Cache:  8k  Level 2 Cache:  N/A 
RAM Type:  80 ns 72-pin SIMM  VRAM Type:  80 ns VRAM SIMM 
Standard RAM:  8 MB  Maximum RAM:  132 MB, 136 MB 
Motherboard RAM:  4 MB, 8 MB 3.  RAM Slots:  4 4. 
Standard VRAM:  512k, 1 MB  Maximum VRAM:  1 MB 5. 
Standard Hard Drive:  230 MB, 500 MB  Int. Hard Drive Type:  SCSI 
Standard CD-ROM:  2X  Standard Disk:  1.44 MB (auto) 
Standard Modem:  N/A  Standard Ethernet:  AAUI-15 
Case Type:  Desktop  Form Factor:  Macintosh IIvx 
Exp. Slots:  3 NuBus, 040 PDS  Exp. Bays (Free):  None 
Battery Type:  3.6V Lithium  Battery Life:  N/A 
Built-in Display:  N/A  Supported MacOS:  7.1-7.5.1, 7.5.3-8.1 
Dimensions:  6.0 x 13.0 x 16.5 6.  Avg. Weight:  25 lbs. 
Original Price:  $2350, $2780 US  Est. Current Price:  N/A
Thanks to http://www.everymac.com for the specification

Manufacturer: Apple
Date: 21st October 1993

This exhibit has a reference ID of CH826. Please quote this reference ID in any communication with the Centre for Computing History.

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