Evolution of Computers

Z1 Computer

Jan 1, 1936

Z1 Computer First freely programmable computer.

ABC Computer

Jan 1, 1942

The Atanasoff-Berry Computer the First Electronic Computer ohn Atanasoff and Clifford Berry

Harvard Mark I Computer

Jan 1, 1944

The modern computer <br/>Harvard Mark I Computer

ENIAC 1 Computer

Jun 26, 1947

By John Mauchly and John Presper Eckert The History of the ENIAC Computer

Intel 4004 Computer Microprocessor

Jan 1, 1971

Intel 4004- The World's First Single Chip Microprocessor

Apple I, II & TRS-80 & Commodore Pet Computers

Jan 1, 1976

Apple I, IIThe First Hobby and Home Computers

The IBM PC

Jan 1, 1981

IBM PC A revolution in personal computers, the IBM PC the first PC.

Apple's Lisa Computer

Jan 1, 1983

<a href='http://inventors.about.com/library/weekly/aa043099.htm' target="tab">Apple's Lisa</a> The first home computer with a GUI, graphical user interface.

Apple Macintosh Computer

Jan 1, 1984

<a href='http://inventors.about.com/library/weekly/aa051599.htm' target="tab">Macintosh</a>The more affordable home computer with a GUI.

Microsoft Windows

Jan 1, 1985

Microsoft Windows begins the friendly war with Apple.