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February 24, 2014 Frederic Withington

When I first wrote programs in 1953, there was no software and few programmers. I entered programs in the computer’s binary language (octal notation) directly into the machine’s registers. And the machine was all mine: there was no operating system to allocate its resources among multiple programs or operate the input-output devices.

January 22, 2014 Alan Weissberger

Introduction:
Gary A. Kildall, PhD (1942 – 1994),  developed and then demonstrated the first working prototype of CP/M (Control Program for Microcomputers) in Pacific Grove in 1974.

January 21, 2014 James Cortada

During January some of you might have noticed a running dialogue among historians and other interested parties about who invented the “first” computer. There was no agreement reached on the correct answer to that question. Discussions about “firsts” pop up about every five years, almost like short-lived brush fires on the side of the road as historians travel on to do their serious work. Over the past forty years I have seen articles and books, even one lawsuit on patents, over the question of “firsts.”

January 10, 2014 Jeffery Stein

Ever get the urge to mess with VisiCalc or WordStar again? Play the original Donkey Kong or Adventure on your computer? Now you can!

December 25, 2013 Alan Weissberger

The United Kingdom has finally pardoned Alan Turing for a gay sex conviction which tarnished the brilliant career of the code breaker credited with helping win the war against Nazi Germany and laying the foundation for the computer age.

December 15, 2013 Alan Weissberger

Computer visionary Doug Engelbart was posthumously honored on December 9th at the Computer History Museum (CHM) in Mt View, CA.  The date of this event was significant, because December 9 was the 45th Anniversary of the “Mother of All Demos.^”  Doug's wife, daughter, and several people that worked with Doug or knew of his work made brief speeches to honor him.

December 9, 2013 ITHS Administrator

Fire in the Scanning CenterThere was a fire at the Internet Archive’s San Francisco scanning center recently. The good news is that no one was hurt and no data was lost. Their main building wasn't affected except for damage to one electrical run which caused them to lose power to some servers for a while.

December 6, 2013 Allan Olley

The History of Science Society held its annual meeting two weeks ago (November 21st to November 24th) in Boston MA. The meeting celebrated among other things the centenary of the journal Isis, the organ around which the society was eventually formed.

November 11, 2013 Jeffery Stein

LEO, more formally known as Lyons Electronic Office, was the world's first business computer, having been developed by the British company J. Lyons & Co. Ltd. between 1947-1954. John Simmons was very much the genius behind this adventure into business process re-engineering. His papers are archived at the Modern Record Centre at Warwick University in Coventry, England. Many of these contain valuable information about the ideas behind the LEO development.

November 9, 2013 Alan Weissberger

The event was in the form of an interview/conversation led by CHM CEO/moderator John Hollar.  Mr. Rattner spent a lot of time discussing his early life at Hollywood High School and how he got involved in electronics and as a EE student at Cornell University.  It was less about Intel's early history.  However, here are a few quick takes on Intel from Mr. Rattner: