On 01/25/2017 02:07 PM, Eric Smith wrote: > The 7070 was announced in Sept. 1958, but did not ship until April > 1960.
According to IBM's DPD Chronology for 1959: "On August 3, DPD introduces the IBM Datacenter -- facilities in which customers rent the use of IBM 7070 systems by the hour and supply their own programmers and operators. DPD foresees a nationwide network of 25 to 30 Datacenters in major cities, with the first three located in New York City, Chicago and Los Angeles. " > The first IBM computing device to use transistors and no vacuum tubes > was the 608 calculator, shipped in December 1957. IBM's first > transistorized computers were the 7090 (36-bit scientific, > transistorized version of 709) shipped in November 1959, and the > 1401, shipped in early 1960, before the 7070. As a matter of fact, here's a 7070 on its way to an installation in Naples in 1959: https://www-03.ibm.com/ibm/history/exhibits/vintage/vintage_4506VV2070.html And I *did* specify computer, not calculator with regard to transistors. So who you gonna believe--a photo taken in 1959 or some guy writing 27 years later saying it didn't exist? Perhaps they've got the 7070 confused with the 7074. --Chuck
