Artifact Details Title Alto II Control Board (2K) circuit board Catalog Number 102674890 Type Physical object Description There are small paper labels on many of the ICs. On bottom there is hand wired engineering change visible. "EXTN MEM" is ink stamped next to "ASSEMBLY" on component side. Date 1979 ca. Manufacturer Xerox PARC (Palo Alto Research Center) Identifying Numbers Other number 12 79 Silk screened on component side Other number 217129B Silk screened on component side Other number 217175C Ink stamped on component side Dimensions overall: 1/2 in x 11 1/2 in x 7 3/8 in Category Component/circuit board