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The Analytical Machine
Charles Babbage designs an analytical engine to perform general calculations automatically. Ada Augusta (a.k.a. Lady Lovelace) is a programmer for this machine. -
Holes in Cards
Herman Hollerith designs a system to record census data. The information is stored as holes in cards, which are interpreted by machines with electrical sensors. Hollerith starts a company that will eventually become IBM. -
ENIAC
J. Presper Eckert and John Mauchly design and build the ENIAC computer. It used 18,000 vacuum tubes and cost $500,000 to build. -
Von Nuemann Architecture
John von Neumann proposes that a program be stored in a computer in the same way that data are stored. His proposal, called the "von Neumann architecture," is the basis for modern computers. -
UNIVAC
Eckert and Mauchly build the first general-purpose commercial computer, the UNIVAC. -
high-level programming
An IBM team, led by John Backus, designs the first successful high-level programming language, FORTRAN, for solving engineering and science problems. -
UNIX operating system
A first version of the UNIX operating system is running on the DEC PDP-7. -
Altair
The first microcomputer, the Altair, is introduced. -
CRAY-1
The first supercomputer, the Cray-1, is announced. -
Apple
Steve Wozniak and Steve Jobs found Apple Computer. -
PC
The PC was invented in 1981 -
Macintosh
Apple made their own computer called the Macintosh computer. -
Windows
Microsoft founded windows
