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# Macintosh Quadra 900

Essentials

Family: Macintosh Quadra

Codename: Darwin, Eclipse, IIex, Premise 500

Gestalt ID: 20

Minimum OS: 7.1

Maximum OS: 8.1

Introduced: October 1991

Terminated: May 1992

Processor

CPU: Motorola MC68040

CPU Speed: 25 MHz

FPU: integrated

Bus Speed: 25 MHz

Register Width: 32-bit

Data Bus Width: 32-bit

Address Bus Width: 32-bit

Level 1 Cache: 4 kB data, 4 kB instruction

ROM: 1 MB

RAM Type: 30 pin SIMM

Minimum RAM Speed: 80 ns

Onboard RAM: 0 MB

RAM slots: 16

Maximum RAM: 256 MB

Expansion Slots: 5 NuBus, 1 PDS

Video

VRAM: 1 MB - 2 MB (4 sockets)

Max Resolution: 1152x870

Video Out: DB-15

Storage

Hard Drive: 80-160 MB

Floppy Drive: 1.4 MB SuperDrive

Optical Drive: 2x CD-ROM

Input/Output

ADB: 1

Serial: 2 Mini DIN-8

SCSI: DB-25

Audio Out: stereo 8 bit mini

Audio In: mono 8 bit mini

Speaker: mono

Networking

Ethernet: AAUI-15

Miscellaneous

Power: 303 Watts

Dimensions: 18.6" H x 8.9" W x 20.6" D

Weight: 36.8 lbs.

Released in October 1991, The Quadra 900 was a more expandable version of the Quadra 700. It had 5 Nubus slots and had room for 3 half-height internal bays instead of the 700's one. The Quadra 900 sold for $7,200.

Picture Credits:
Wikipedia