Babbage's Difference Engine and other historic computers

by Bill Detwiler  |  May 26, 2010, 6:34am PDT  |  Image 15 of 24

Electrodata E-205 (1954)

From the Computer History Museum's description:

"The vacuum-tube based E-205 used a rotating magnetic drum for main memory."

For more information, check out the Computer History Museum's description of this machine.

Photo credit: Jitze Couperus

Electrodata E-205 (1954) - Image 15 of 24

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Bill Detwiler

About Bill Detwiler

Bill Detwiler is Head Technology Editor of TechRepublic. Previously, he worked as a Support Tech and IT Manager in the social research and energy industries.

Bill Detwiler

Bill Detwiler
Bill Detwiler is Head Technology Editor for TechRepublic. Previously he worked as a Technical Support Associate and Information Technology Manager in the social research and energy industries. Bill is a Microsoft Certified Professional with experience in Windows administration, data management, desktop support, and system security.

Bill Detwiler

Bill Detwiler
Bill Detwiler has nothing to disclose. He doesn't hold investments in the technology companies he covers.
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