Early Computers.  My school kids celebrated the 40th Anniversary of ENIAC big time!

Photos of early computers: 1940s-1960s

A retrospect on Oldest Computers

Colossus Year: 1944 Two generations of Colossus, the Mark 1 and Mark were used by British codebreakers to decrypt coded German messages at the end of

4176600930 e9a3ae9a28 o - Retro delight: Gallery of early computers

Retro delight: Gallery of early computers

Retro delight: Gallery of early computers - Sharenator

Computer History: the IBM 7090 mainframe computer. Could fill a large room in the 70's. Of course, the smaller computers of today can outperform it easily, but this is a milestone in datacenter technology of today.

Computer History: the IBM 7090 mainframe computer. Could fill a large room in the Of course, the smaller computers of today can outperform it easily, but this is a milestone in datacenter technology of today.

Computer Terminals (1960s).

Female IT professionals operating computer terminals. Courtesy of IBM.

Year 1955: Felker and Harris program TRADIC, AT&T Bell Laboratories announced the first fully transistorized computer, TRADIC. It contained nearly 800 transistors instead of vacuum tubes. Transistors — completely cold, highly efficient amplifying devices invented at Bell Labs — enabled the machine to operate on fewer than 100 watts, or one-twentieth the power required by comparable vacuum tube computers. The computer occupied only 3 cubic feet.

Year 1955: Felker and Harris program TRADIC, AT&T Bell Laboratories announced the first fully transistorized computer, TRADIC. It contained nearly 800 transistors instead of vacuum tubes. Transistors — completely cold, highly efficient amplifying devices invented at Bell Labs — enabled the machine to operate on fewer than 100 watts, or one-twentieth the power required by comparable vacuum tube computers. The computer occupied only 3 cubic feet.

The First Computer Picture

The Ten Most Iconic Photos Of The 1940s

Once You See These Rare Historical Photos, You’ll Never Forget Them, Especially

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