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CNC
The Complex Number Calculator (CNC) was designed by George Stibitz. It was able to calculate complex numbers and use telephone lines to calculate remotely. It is one of the first examples of remote accessing computing. -
Atanasoff - Berry Computer - (ABC)
ABC Computer (Atanasoff - Berry Computer) was invented by John Vincent Atanasoff and Clifford Berry. The ABC was the first electronic digital computer (literally the first computer ever). Unfortunately, it was not programmable and the main design was to calculate 29 equations at one time. It was also the first computer to use vacuums. -
Harvard Mark I
Harvard Mark 1 idea was originated by Howard Aiken and it was designed and built by IBM. The Harvard Mark 1 was the first operating machine that could execute long computations automatically. The Automatic Sequence Controlled Calculator (Harvard Mark 1) was able to print out the outputs itself eliminating all human errors. This computer helped advance the U.S. military by completing computing tables for the designs of new equipment. -
Electronic Numerical integrator and Computer (ENIAC)
Built by John Mauchly & J. Presper Eckert however, a lawsuit was filed by Atanasoff claiming that Mauchly had stolen his idea. Atanastoff won the lawsuit and was declared the creator. The ENIAC was a milestone in the progression of the computer; it was the first fully electric programmable general purpose computer. It was initially intended to help the U.S. Army calculate artillery range tables but because it wasn't completed until after the war it was used for calculations on the hydrogen bomb. -
Modem
Modem - Invented in “1949 for transmitting radar signals by Jack Harrington’s group at the Air Force Cambridge Research Center (AFCRC). The modem modulates digital data into sounds, and demodulates received sounds into digital data. (MODulation + DEModulation = MODEM).” This was the beginning of the modem we know today. (Computerhistory.org)
