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The Complex Number Calculator (CNC) / George Stibitz
Calculations were performed remotely on the Complex Number Calculator using a Teletype terminal that was connected to New York through a special type of telephone line. This was considered one of the first computing by remote access. -
Z3 / Konrad Zuse
Konrad Zuse had developed the third version of his computer model. This particular design was considered the first working programmable, fully auto digital computer because of it's binary arithmetic performance and 22-bit word length. -
Atanasoff-Berry Computer (ABC) / Professor John Vincent Atanasoff & Clifford Berry
The Atanasoff-Berry Computer (ABC) device was designed only to solve linear equation systems. It had gone on to become the first digital electronic automatic computer after a patent dispute. Although it took years for the dispute to be resolved, the results was a landmark. -
Manchester Baby / University of Manchester
The Small-Scale Experimental Machine (SSEM) or most commonly known as Manchester Baby, designed by Frederic Williams, Tom Kilburn, Geoff Toothill, was the first program in history to run on a digital, electronic, stored-program computer. Programs based on Manchester Baby would continue to be one of several primary functions of computers. -
Modem / Air Force Cambridge Research Center (AFCRC)
Jack Harrington's group at the AFCRC, had designed a device whose name was derived from it's function: The device MOdulates digital data into sounds and DEModulates received sounds into digital data. This allowed computers to use regular telephone lines and offered greater coverage at lower costs than dedicated telegraph or leased data lines.
