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Charles Babbage
Charles Babbage conceives of a steam-driven calculating machine that would be able to compute tables of numbers. -
Herman Hollerith
Designed a punch card system to calculate the 1880 census, accomplishing in three years and saving the government $5 million. -
J.V. Atanasoff
A professor of physics and mathematics at Iowa State University. trys to build the first computer without gears, cams, belts or shafts. -
Clifford Berry & Atanasoff
design a computer that can solve 29 equations simultaneously, marks the first time a computer can store memory on its own memory. -
John Mauchly & J. Presper Eckert
Two University of Pennsylvania professors build the Electronic Numerical Integrator and Calculator (ENIAC). Considered the grandfather of digital computers, it fills a 20 foot by 40 foot room and has 18,000 vacuum tubes. -
Mauchly & Presper
Mauchly and Presper leave the University of Pennsylvania and receive funding from the Census Bureau to build the UNIVAC, the first commercial computer for business and government applications. -
Grace Hopper
Developed the first computer language, which eventually becomes known as COBOL. -
Thomas Johnson Watson, Jr
son of IBM CEO Thomas Johnson Watson, Sr., conceives the IBM 701 EDPM to help the United Nations keep tabs on Korea during the war. -
FORTRAN
The FORTRAN programming language is born. -
Jack Kilby and Robert Noyce
unveil the integrated circuit, known as the computer chip. -
Douglas Engelbart
shows a prototype of the modern computer, with a mouse and a graphical user interface (GUI). This marks the evolution of the computer from a specialized machine for scientists and mathematicians to technology that is more accessible to the general public. -
DRAM
Newly formed Intel unveils the Intel 1103, the first Dynamic Access Memory (DRAM) chip. -
Alan Shugart
leads a team of IBM engineers who invent the “floppy disk,” allowing data to be shared among computers. -
Robert Metcalfe
a member of the research staff for Xerox, develops Ethernet for connecting multiple computers and other hardware. -
IBM 5100
Becomes the first commercially available portable computer. -
Steve Jobs and Steve Wozniak
Start Apple Computers on April Fool’s Day and roll out the Apple I, the first computer with a single-circuit board.