History of Computers March 26, 2012Greer Potadle

History of ComputersHistory of Computers

March 26, 2012March 26, 2012Greer PotadleGreer Potadle

Have you ever wondered Have you ever wondered how modern computers how modern computers

came about?came about?

Today I will go over all of the Today I will go over all of the most major advances and most major advances and improvements of computers.improvements of computers.

Main TopicsMain Topics

Early Computational DevicesEarly Computational DevicesEarly ComputersEarly ComputersGenerations and Main CompGenerations and Main Comp

onentsonents Inventors/ DevelopersInventors/ Developers InternetInternet

Early Computational Early Computational DevicesDevices

AbacusAbacus First recorded computational First recorded computational

machinemachine Created in 300 B.C.Created in 300 B.C. Babylonians created itBabylonians created it Used to countUsed to count

Early Computational Early Computational DevicesDevices

EDSACEDSAC Electronic Delay Storage Automatic Electronic Delay Storage Automatic

CalculatorCalculator Used paper tape for inputUsed paper tape for input Sent outputs to a tele-printerSent outputs to a tele-printer First thinking machineFirst thinking machine Created in 1949 at Cambridge Created in 1949 at Cambridge

University, EnglandUniversity, England

Early ComputersEarly Computers

UNIVACUNIVAC First commercially available computerFirst commercially available computer Created in 1951 by Eckert and MauchlyCreated in 1951 by Eckert and Mauchly Separated problems of input and output from Separated problems of input and output from

computation facilitycomputation facility

Punched CardsPunched Cards How you inputed and got output informationHow you inputed and got output information Created in 1970 by Herman HollerithCreated in 1970 by Herman Hollerith


Mark 1Mark 1 Used pre-punched paper tapeUsed pre-punched paper tape Invented by Howard Aiken and Invented by Howard Aiken and

Grace HopperGrace Hopper In 1944In 1944


First MicrocomputerFirst Microcomputer Altair 8800Altair 8800 Created by Ed Roberts in 1975Created by Ed Roberts in 1975 Purchased for $439Purchased for $439


ENIACENIAC First General Purpose ComputerFirst General Purpose Computer Created in 1946Created in 1946

EDVACEDVAC Electronic Discrete Variable Automatic Electronic Discrete Variable Automatic

ComputerComputer First multipurpose computerFirst multipurpose computer Most internal memoryMost internal memory Created in 1947Created in 1947

Generations and Main Generations and Main ComponentsComponents

First GenerationFirst Generation Vacuum tubes were added to Vacuum tubes were added to

promote circuitry for memorypromote circuitry for memory Second GenerationSecond Generation

Transistors made them faster, Transistors made them faster, cheaper, smaller, energy efficientcheaper, smaller, energy efficient

Third GenerationThird Generation Integrated circuits increased speedIntegrated circuits increased speed

Generations and Main Generations and Main ComponentsComponents

Fourth GenerationFourth Generation Fir Microprocessor was addedFir Microprocessor was added

Fifth GenerationFifth Generation Artificial intelligence for computers Artificial intelligence for computers

to understand our languageto understand our language

For More Information on the For More Information on the Generations of ComputersGenerations of Computers

Inventors/ DevelopersInventors/ Developers

Charles BabbageCharles Babbage Considered father of computingConsidered father of computing Created analytical machine in Created analytical machine in

18351835 Created a difference machine Created a difference machine

1846-18591846-1859

Inventors / DevelopersInventors / Developers

Department of DefenseDepartment of Defense Created Arpanet in 1969Created Arpanet in 1969 Used for scientists to share ideasUsed for scientists to share ideas Used for military leaders to Used for military leaders to

communicatecommunicate


Blaise PascalBlaise Pascal First digital calculatorFirst digital calculator In Texas, 1645In Texas, 1645 Made to help his father with taxesMade to help his father with taxes


John Von NewmanJohn Von Newman Created the idea of storing Created the idea of storing

programs as other dataprograms as other data They were performed sequentially They were performed sequentially


Steve Jobs and Steve WozniakSteve Jobs and Steve Wozniak Created Apple Inc. in 1976Created Apple Inc. in 1976 Started with the MacintoshStarted with the Macintosh

Bill Gates and Paul AllenBill Gates and Paul Allen Founded Microsoft in 1975Founded Microsoft in 1975 Created Basic language for softwareCreated Basic language for software Altair 8800Altair 8800

InternetInternet

Birth of the NetBirth of the Net Started in 1969Started in 1969 Made as communication that was Made as communication that was

immune to nuclear attacksimmune to nuclear attacks During the cold warDuring the cold war Used by military leaders Used by military leaders

InternetInternet

Tim Berners-LeeTim Berners-Lee Created World Wide Web (WWW)Created World Wide Web (WWW) In 1991In 1991

Marc AndreessenMarc Andreessen Created Mosaic Created Mosaic First Graphical BrowserFirst Graphical Browser 1992 1992

Works CitedWorks Cited

““Blaise Pascal (1623-1662).” Blaise Pascal (1623-1662).” Oregon State Oregon State University.University. Oregon State University. 15 January Oregon State University. 15 January 2011. 2 April 2012 2011. 2 April 2012 <http://oregonstate.edu/instruct/phl302/philoso<http://oregonstate.edu/instruct/phl302/philosophers/pascal.html>.phers/pascal.html>.

““History of the UNIVAC Computer.” History of the UNIVAC Computer.” About.com About.com Inventors.Inventors. 2012. 2 April 2012 2012. 2 April 2012 <http://inventors.about.com/od/uvstartinvention<http://inventors.about.com/od/uvstartinventions/a/UNIVAC.htm>.s/a/UNIVAC.htm>.

The EndThe End

Now you have learned about the Now you have learned about the most historical events of the most historical events of the computer. I hope you enjoyed it! computer. I hope you enjoyed it!

Documents

History of Computers March 26, 2012Greer Potadle