-
Atanasoff-Berry-Computer made
By Dr. John V. Atanasoff and his assistant Clifford Berry -
first programmable computer designed
By Konrad Zuse -
Rockefeller Differential Analyzer created
By Vannevar Bush -
ENIAC was placed in operation at the Moore School.
Thirty separate units, plus power supply and forced-air cooling, weighed over thirty tons. Its 19,000 vacuum tubes, 1,500 relays, and hundreds of thousands of resistors, capacitors, and inductors consumed almost 200 kilowatts of electrical power. -
Harvard Mark I first created.
Howard Aiken, in collaboration with engineers from IBM, constructed a large automatic digital sequence-controlled computer. -
First Draft of a Report on the EDVAC
By John von Neumann. This report changed the direction of computer development away from punched paper tape. -
Grace Hoper records first "bug" in Harvard Mark II
A moth stuck between the relays and logged at 15:45 hours. -
First successfully tested point-contact transistor
By William Shockley, Walter Brattain, and John Bardeen -
first Germanium transistor.
By Bell Labs physicists Shockley, Brattain, and Bardeen. -
the Model 3 created.
By Remington engineers. It was a one of a kind concept computer.