IT Historical Resource Sites

Listing of sites in our IT Historical Resource Database sorted alphabetically by Institution

25th Anniversary for Microprocessor

This week marks the 25th anniversary of the microprocessor, measured from November 15, 1971--the day an advertisement for the Intel 4004 first appeared in Electronic News Magazine. However, acknowledges its "inventor," Dr. Marcian E. (Ted) Hoff Jr.,...

40 Years of Icons: The Evolution Of The Modern Computer Interface

Fifty years ago, the word “computer” had a very different meaning. Prior to World War II, the word referred not to machines, but to people (mostly women in order to save costs) hired as human calculators. During the war, military research spawned...

41-Year History of Email, The

Whether you consider Morse code or telegrams to be the original electronic mail, sending text from one person to the next has certainly evolved. Take a look at how email officially clicked and has become a major part of our lives, consuming 28% of...

5,000 Year Journey Of The History and Evolution of Computers, The

A computer is essentially a physical machine or system which can perform predefined actions via receiving input and then outputting useful information/results. For example a modern-day computer can receive input (such as words typed into a word...


86-DOS was an operating system developed and marketed by Seattle Computer Products for its Intel 8086-based computer kit. Initially known as QDOS (Quick and Dirty Operating System) the name was changed to 86-DOS once SCP started licensing the...

A Brief History of Email

Mankind has always had a compelling desire to communicate. In ancient times this could be verbally or in some form of writing. If remote communication was required (i.e. if the parties were not physically together) then messages had to be physically...

A Sharp (Axiom)

A# (A sharp) is an object-oriented functional programming language distributed as a separable component of Version 2 of the Axiom computer algebra system. A# types and functions are first-class values and can be used freely in conjunction with an...

A Short History of PC Power Supply Voltage Rails

Let's clear up any confusion about the term "rail". A voltage "rail" refers to a single voltage provided by the PSU (short for power supply - actually it stands for power supply unit). An ATX PSU has one 3.3 volt rail. It also has one 5 volt rail....

A-0 System

The A-0 system (Arithmetic Language version 0), written by Grace Hopper in 1951 and 1952 for the UNIVAC I, was the first compiler ever developed for an electronic computer. The A-0 functioned more as a loader or linker than the modern notion of a...

Abacus - Ancient Wonder - Chinese Calculating Aide

The Abacus has a rich history dating back over 800 years in China and with roots extending back over 2000 years in Rome, India and Mesopotamia.

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