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History of the Computer Ancient to 1980s

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Title: History of the Computer Author: Alexander S Jackson Last modified by: Xander Jackson Created Date: 5/19/2010 7:44:50 PM Document presentation format – PowerPoint PPT presentation

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Title: History of the Computer Ancient to 1980s


1
History of the ComputerAncient to 1980s
  • INSM 180
  • 5/19/2010
  • XanderJackson_at_gmail.com

2
What is a Computer?
  • A device for processing, storing and displaying
    information
  • Computer. (2009). Encyclopedia Britannica.
    Retrieved May 10, 2010, from http//search.eb.com/
    eb/article?tocId235927
  • Basically any device that can help you do math
  • Ie. it helps compute equations

ITs A Calculator!
3
The Precursors
  • Abacus or Counting Board
  • Thought to be from 1100 BCE Babylonia (modern day
    Iraq)
  • Oldest known is the Salamis Tablet (circa 300
    BCE)
  • Didnt do the equation for you
  • You do the math in your head
  • The board acts as a place holder

Abax from http//www.mlahanas.de/Greeks/Kythera.ht
m
Fernandes, L. (August 30, 2007). The Abacus A
brief history. May 19, 2010 from
http//www.ee.ryerson.ca/elf/abacus/history.html
4
Precursors
  • Counting and calculation machines date back to
    before Leonardo DaVinci
  • Items like the Antikythera device
  • Found in 1900 off the Isle of Antikythera in the
    Mediterranean
  • Intricate device of gears, dating to 100 BCE
  • Calculated the position of the Sun, Moon and
    Zodiac over the 29.5 day Synodic month
  • YouTube Video http//www.youtube.com/watch?vMqhu
    AnySPZ0

5
18th Century
  • Last of the Calculators
  • 1820 Charles Xavier Thomas DeColmar
  • Arithmometer
  • , -, X and /
  • Popular for 90 years
  • Desktop sized
  • Used by Larkin Soap Co.
  • Buffalo, NY
  • Larkin HQ was a DATABASE!

DeColmars Aritmometer. From http//brassgoggles.c
o.uk/images/arithmometer.jpg
6
The First Computer
  • The Jacquard Loom 1804
  • Joseph-Marie Jacquard
  • French weaver
  • Used punch cards to automate weaving
  • Could create incredibly complex designs,
    accurately, and repeatably
  • Basis for Charles Babbages designs

The Jacquard Loom. From http//www.english.ucsb.ed
u/faculty/ayliu/courses/english25/materials/jacqua
rd-loom.jpg
7
Rise of the Mechanical Computer
  • The Difference Engine and the Analytic Engine
  • Charles Babbage worked from 1822 to 1833
  • Never actually completed either
  • Designs themselves so revolutionary
  • Influenced all further developers

Doron Swade Operating Babbages Difference Engine
No. 2. from http//www.sciencemuseum.org.uk/images
/I033/10303322.aspx
Babbages Analytical Engine. From
http//www-03.ibm.com/ibm/history/exhibits/attic2/
attic2_182.html
8
End of the 19th Century
  • Industrial Revolution
  • Mechanical Computers built to do calculation for
    accounting cleks
  • Industrial Computers to run the factories
  • Analog devices using punch cards, Boolean Algebra
    (AND, OR, NOT, XOR)
  • Digital Computing with Vacuum Tubes, and Electric
    Circuits
  • Interfaces allowed long-distance communication
  • The Teleprinter ticker tape Associated Press
  • Birth of Computer Industry
  • International Business Machines

9
The 40s, 50s, 60s
  • Advent of the machine we know today
  • 1940s true computers
  • Outputs we recognize today
  • Size of a warehouse, our cell phones are more
    powerful
  • 1950s transistors replace vacuum tubes
  • Smaller, cheaper computers
  • Universities began to buy them
  • Programming profession arises
  • 1960s Integrated circuits
  • Smaller, home use computers
  • DIY kits

10
The 1970s
  • Early 70s late 60s
  • Gates Allen, Jobs Wozniak
  • Smaller Computers
  • Micro Instrumentation and Telemetry Systems
  • Enter the home market with the Altair 1975
  • Microsoft Gates Allen
  • 1975 BASIC Language for Altair
  • Apple Computers Jobs Wozniak
  • 1971 1980 capture 50 of PC market
  • Start with blue boxes, move on to the Apple II

11
The 1980s
  • 1981 - IBM enters the market
  • IBM PC using Windows Operating System
  • 1984 - Apple Macintosh
  • Simple Graphical User Interface
  • By 1989 Microsoft was reporting 1,000,000,000!
  • Home market expansion
  • But also business industry Word Processing,
    Spreadsheets
  • Apple VS Windows PC
  • http//www.youtube.com/watch?vVtvjbmoDx-I
  • Suing the crap out of each other over Patent
    Infringements
  • Sound familiar?
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