evolution of the computer

Diffrence computer

Jul 1, 1822

steam-driven calculating machine that is used to compute tables of numbers.

Herman Hollerith made punch card system

Jul 1, 1890

Herman Hollerith designed a punch card system to calculate the 1880 census,

J.V. Atanasoff first computer without gears

Jul 1, 1937

first computer without gears, cams, belts or shafts.

First electronic computer.

Jul 1, 1941

Atanasoff and his graduate student, Clifford Berry, design a computer that can solve 29 equations simultaneously.

Electronic Numerical Integrator and Calculator

Jul 1, 1944

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.

UNIVAC

Jul 1, 1946

Mauchly and Presper build the UNIVAC, the first commercial computer for business and government applications.

COBOL.

Jul 1, 1953

Grace Hopper develops the first computer language.

FORTRAN

Jul 1, 1954

The FORTRAN programming language is born.

Integrated circuit

Jul 1, 1958

ack Kilby and Robert Noyce unveil the integrated circuit, known as the computer chip.

Mouse and GUI

Jul 1, 1964

mouse and a graphical user interface.

DRAM

Jul 1, 1970

first Dynamic Access Memory (DRAM) chip.

floppy disk

Jul 1, 1971

Alan Shugart leads a team of IBM engineers who invent the “floppy disk,” allowing data to be shared among computers.

Ethernet cord

Jul 1, 1973

obert Metcalfe, a member of the research staff for Xerox, develops Ethernet for connecting multiple computers and other hardware.

personal computers

Jul 1, 1974

A number of personal computers hit the market, including Scelbi & Mark-8 Altair, IBM 5100, RadioShack’s TRS-80—affectionately known as the “Trash 80,” and the Commodore PET.

IBM 5100

Jul 1, 1975

The IBM 5100 becomes the first commercially available portable computer.