The Kenbak-1 was the world’s first personal computer. John Blakenbaker developed it at the Kenbak Corporation in 1970. It was before the first microprocessor, so it did not have a single CPU. The first units were sold in 1971, but only 50 machines were built. It sold for $750 US…
The original concept of relational databases was introduced with the publication of “A Relational Model of Data for Large Shared Databanks” in 1970 by Dr. E.F.Codd. The SQL language itself was originally created by Donald Chamberlin and Raymond Boyce at IBM based on Codd’s model in the early 70s. Originally…
The C programming language was invented at Bell Labs in the early 70s by Dennis Ritchie and was intended to be used with Unix. It has since become a widely used language in many areas including system software and in computer science education. It has spawned C++ and influenced many…
Norman Abramson designed a network of radio links that allowed the exchange of data among computers located on four of the Hawaiian Islands. At the behest of Robert Taylor, then head of ARPA’s Information Processing Techniques Office, funding was put into a network that sends messages through radio waves to…
An automatic teller machine or ATM allows a bank customer to conduct their banking transactions from almost every other ATM machine in the world. Don Wetzel was the co-patentee and chief conceptualist of the automated teller machine, an idea he said he thought of while waiting in line at a…