John V. Atanasoff Herman Hollerith Lady Ada Lovelace John Von Neumann Charles Babbage Grace Hopper Alan Turing Nicklaus Wirth George Boole Jack Kilby Blaise Pascal Bill Gates John P. Eckert/John W. Mauchly Gottfried Wilhelm Von Leibniz Bjarne Stroustrup Steve Jobs

Astrolabe Step Reckoner Hollerith Machine Baby BINAC Intel 4004 Transistor Xerox Star Cray Supercomputer PASCAL CP/M Davinci's Mechanical Calculator Abacus Difference Engine Turing Machine Harvard Mark I ENIAC Microprocessor Integrated Circuit Original Apple Macintosh COBOL Smalltalk UNIX Calculator Napier's Bones Analytical Engine ABC Zuse Z3 EDVAC Mainframe Computer Altair Computer Original IBM PC FORTRAN C Linux Pascal's Arithmetic Machine Slide Rule Jacquard's Loom Colossus MK II EDSAC UNIVAC Mini Computer Apple II BASIC C++ NeXT