Prototype Core Memory Associated with Green Machine Development
date: label: date made
content: 1965
name: label: maker
content: Osborne, Thomas E.
notes: label: Description
content: This is a white plastic board with an array of holes. on one side of th board is a 5x5 array of magnetic cores, linked by wires that go both across the board and up and down. various connectors along the edge are attached to the wires. There are further connections on the back of the board. A tag attached to the board with a wire indicates that it is a prototype core memory board used to develop the ones used in the Green Machine (the Green Machine, in turn, was the prototype for the HP9100 electronic calculator). Again according to the tag, the board worked but for the wrong reasons. Analysis of why it was working so well produced a couple of patents. For related transactions, see 1978.0311, 1985.0264 and 2010.3092.
label: Description
content: For related transactions, see non-accession 2010.3092.
label: Location
content: Currently not on view
place: label: place made
content: United States: California, Berkeley
setName: label: See more items in
content: Medicine and Science: Computers
creditLine: label: Credit Line
content: Gift of Thomas E. Osborne
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2010.0217.01
label: catalog number
content: 2010.0217.01
label: accession number
content: 2010.0217
objectType: label: Object Name
content: circuit board
physicalDescription: label: Measurements
content: overall: 1.1 cm x 14 cm x 5 cm; 7/16 in x 5 1/2 in x 1 31/32 in