Charles Babbage (1792-1871)He was inspired by the punched Cardto idea, developed an idea of usingpunched cards to input data.He continued his efforts and putforward an idea of a machine thatcan do 60 calculations per second.The Analytical Engine stamped thefoundation for modern computing.
The First Programmer Ada AugustaKing (1815-1852)The daughter of LordByron, was thepersonal assistant ofCharles Babbage.
She suggested binary datastorage and wrote the firstcomputer program for theAnalytical Engine.The ADA software was named
George Boole (1815-1864)He was self taughtEnglish Mathematician.His theory of Booleanlogic became fundamentalto the design of computercircuitry.
Dr. Herman HollerithHe developed punched cardsystem for storing and retrievingdata.He also built the tabulatingmachine to read the cards andprocessing data.
He started Tabulated MachinesCompanies in 1896.In 1911 , this company becamethe Computing TabulatingRecording Company and now theInternational Business machines,simply IBM.
Digital EraClaude ShannonHe suggested 1’s and 0’s ofbinary systems can beconsidered ‘ON’ and OFFposition of the flow of current.
Dr. John VincentAtanasoffHe built the first electroniccomputer named AtanasoffBerry Computer.
J. Presper Eckert andJohn W illiam MauchyThey developed generalpurpose computer, ElectronicNumerical Integrator andCalculator (ENIAC).This computer has 1800 valvesconsuming 100 kilowatts ofpower and weighed several tons.
John Von NeumanHe introduced an idea ofentering the program ofinstructions into themachines for its proceduresas the numerical data isentered.
Admiral Grace HopperShe developed this idea and itwas designed and built byMauchy and Eckert. The firstcommercial electronic digitalcomputer capable of usingstored programs was calledUniversal Automatic Calculator(UNIVAC).
TransistorsIn 1947, computers entereda second generation by theintroduction of transistors.It was developed by theAmerican physicist WilliamShockley.