Macintosh Quadra 900

Macintosh Quadra 900

Mac_specs|
Motorola 68040
CPUspeed=25 MHz|OS=System 7.0.1|RAM=4 MB, expandable to 256 MiB|RAMtype=80 ns 30-pin SIMM
Discontinued=May 18, 1992

The Macintosh Quadra 900 was a high-end personal computer introduced with the Quadra 700 in October 1991 as Apple Computer's first computers in the Quadra series using the Motorola 68040 processor. It was discontinued in 1992, and succeeded by the very similar Quadra 950. The Quadra 900 could be upgraded to 256 megabytes of RAM (an astronomical amount for the time), which with its 25 MHz processor made it a very useful computer for scientific or design work. It was the first Mac to be built in a full tower case, featuring a single 5.25" bay. Quadra 900 and 950s with full complements of RAM were exceedingly rare, due to the high cost (many thousands of dollars) of the SIMMs at the time.

External links

* [http://www.everymac.com/systems/apple/mac_quadra/stats/mac_quadra_900.html Everymac.com - Macintosh Quadra 900 specifications]
* [http://docs.info.apple.com/article.html?artnum=112181 Macintosh Quadra 900 technical specification] at apple.comNavbox with columns
name = Navbox with columns/doc
state = uncollapsed
title = Apple Model Navigation

colstyle = text-align:center;background:silver;
colwidth = 25%

col1header = Replaced
col2header = Current Model
col3header = Successor

col1 = Macintosh IIfx
col2 = Macintosh Quadra 900
col3 = Macintosh Quadra 950

col1footer = Preceding Family Model
col2footer = October 21, 1991
col3footer = Following Family Model

Quadra 900


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