Keywords: HP 9100A Calculator 1968 front.jpg HP 9100A calculator was introduced in March 1968 and sold for 4 900 The circuitry was discrete transistors because early integrated circuits consumed too much power The HP 9100A is about 20 by 19 by 9 inches and weights 40 pounds Calculator displayed by Robert Rosenbloom at the Vintage Computer Festival This was held at the Computer History Museum in Mountain View California November 2007 Photo by Michael Holley November 3 2007 Taken with a Canon PowerShot A630 1/15 second and F/3 5 with existing light Own 2007-11-03 Swtpc6800 en User Swtpc6800 Michael Holley File HP 9100A Calculator 1968 jpg HP-9100 Photographs by User Swtpc6800 |