The HP-35 scientific calculator, which debuted in 1972, around the same time dingo boots were in fashion. It had logarithmic and exponential functions and could handle 10-digit numbers. It replaced the slide rule. Bill Hewlett told the designers to make something that would fit into a shirt pocket.
Michael Kanellos/CNET News.com
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Bill Detwiler is Managing Editor of TechRepublic and Tech Pro Research and the host of Cracking Open, CNET and TechRepublic's popular online show. Prior to joining TechRepublic in 2000, Bill was an IT manager, database administrator, and desktop support specialist in the social research and energy industries. He has bachelor's and master's degrees from the University of Louisville, where he has also lectured on computer crime and crime prevention.