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Presentation transcript:

Visual Communications Computers

Charles Babbage The analytical engine First described in 1837 Worked on until his death in 1871 Never really built Mechanical Essentially a “modern design” in that it used algorithms

Herman Hollerith Statistical tabulator Electrical device for completing calculations 1889 Hollerith combined his company with three others to form a company called the Computing Tabulating Recording Company Became IBM

ENIAC Electronic Numerator Integrator and Comparator Electronic computer using vacuum tubes Designed to calculate artillery trajectories 1946

ENIAC

UNIVAC Universal Automatic Computer Designed for business applications Used by the U.S. Census Bureau 1950

UNIVAC

First personal computer “SIMON”

ALTAIR 8800

ALTAIR 8800 Introduced in 1975 A kit computer designed to be assembled by hobbyists Used BASIC computer language ALTAIR BASIC was designed by Bill Gates and included with the machine

MICROSOFT Gates left Harvard to found Microsoft based on the success of BASIC Personal Computer Disk Operating System (PC-DOS) brought real success to Microsoft DOS allowed average users to operate the computer without knowing programming language

APPLE Steve Jobs, Steve Wozniak and Ronald Wayne Founded in 1976 Incorporated the graphical user interface (GUI)

APPLE