central processing unit for Power Mac G3
Date: circa 1998
Inventory Number: 2000-1-0003
Classification: Circuit Board
Subject:
Maker: Apple Computer Inc. (1976-present)
Maker: Motorola Inc. (1928-present)
Cultural Region:
Place of Origin:
City of Use:
Dimensions:
1 x 6.4 x 4.5 cm (3/8 x 2 1/2 x 1 3/4 in.)
Accessories: performance review article (in instrument file)
Description:
Rectangular green cutout, printed circuit board with two black ceramic chips attached to one half and a red and blue 166 MHz, Motorola 7500 processor in an off-white frame on the other half. On the back of the board is a 17x17 grid of brass connection pins for plugging the board into a computer unit.
Signedunsigned
FunctionCPU card for computer used in Biology Teaching Labs for web browsing and presentations by and for TFs and staff. Central processing units are responsible for carrying out the instructions given by computer programs and managing the other components' operations.
Specifications of the Power Mac G3 from which this unit was taken are available here.
An article detailing the benefits of this CPU design including diagrams of its operation is available in the instrument file.
Specifications of the Power Mac G3 from which this unit was taken are available here.
An article detailing the benefits of this CPU design including diagrams of its operation is available in the instrument file.
Curatorial RemarksGiven to the CHSI by the Department of Biology when they upgraded.
Primary SourcesJuhaus, Mike. "The Performance Edge; How Much Difference Does Having a Big "Backside" Cache Make - A Performance Review". Available here (copy in instrument file).
ProvenanceBiology Teaching Labs, Department of Biology, Harvard University.