MELJUN CORTES--Computer HISTORY Origin
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Transcript of MELJUN CORTES--Computer HISTORY Origin
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HISTORY
OF
COMPUTER
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How did it start?
Long time ago, people
had to work very hard tohave something theywant. They always look
for ways to make theirwork faster and easier.
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Since man is born with
intelligence, he thought of ways that would make thingseasy for him. One of the
problems encountered by manwas counting the things hehad. Because of this, he
invented something that couldhelp him count fast and easy.
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Early Computing Devices
The AbacusAbout 4,000 years ago, the Chinese
invented the ABACUS. It is an addingtool that can help can you add &
subtract numbers by moving beads
back & forth on rods. The abacus wasone of the earliest counting devise
invented to help man solve his
counting problems.
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The Abacus
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The Pascaline Calculator
In 1642, Blaise Pascal , a French
mathematician, invented the Pascal
calculator. This device, also known as
the Pascaline, operated 8 movable
dials, which could add numbers up to
8 figures long. It was used to perform
simple arithmetic calculations. This
device was limited to addition &
subtraction only.
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The Pascaline Calculator
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Leibnitz Calculator
In 1673, Gottfried Leibntiz, aGerman mathematician &
philosopher, enchanced thePascaline by creating a devicethat could also multiply. It can
even find the square root of number. The device was called theLeibnitz Calculator/ machine.
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Leibnitz Calculator/Machine
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Jacquards Automatic Loom
In 1801, Joseph-Marie Jacquard, aFrenchman, invented the
Jacquards loom. Jacquardsloom used punch card toprogram pattern that were
outputted as woven fabrics by
the loom.
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Jacquards Automatic Loom
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Electro-Mechanical Computing Devices
Difference Engine
In 1822, Charles Babbage, a British
mathematician professor,invented the Difference Engine.Powered by steam & as large as a
locomotive, the machine had thecapacity to perform calculations &print the results.
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Difference Engine
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Analytical Engine
In, 1833, several years after Babbage
worked on the Difference Engine, he
began working on the first general-
purpose digital computer, which hecalled the Analytical Engine. This
steam-powered engine outlined the
basic elements of todays modern general-purpose com puter and was a
breakthrough concept.
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Analytical Engine
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Electronic
Computing Devices
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Holleriths Tabulating Machine
In 1889, Her man Hollerith, an Americaninventor, invented the HollerithsTabulating Machine . The machine was a
punch card reader & had the capacity tostore & process data. Hollerith brought hispunch card reader into the business world,
founding the Tabulating Machine C om pany
which later became Internati onal BusinessMachine (IBM) in 1924.
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Holleriths Tabulating
Machine
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Mark 1
This all-electronic calculator wasinvented by How ard H.Aiken in
1930. This was used to createballistic charts for the U.S.
Navy. The Mark 1 is called the
Harvard-IBM Aut omaticSequence C ontr olled Calculat or .
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Mark 1
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ENIAC
Between 1943 and 1946, the ENIACor the Electr onic Numerical
Integrat o
r and C om
puter wasdeveloped by John Presper Eckert and John Mauchly . This general
purpose computer computed at aspeed 1,000 times faster than theMark 1.
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ENIAC
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EDVAC
Between 1947 & 1948, the EDVACor the Electr onic Discrete Variable
Aut omatic C om puter was invented
by John v on Neumann. Thisinvention had a Central
Processing Unit (CPU), whichallowed all computer functions tobe coordinated through a single
source.
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EDVAC
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UNIVAC 1
The 1948, the UNIVAC or theUniversal Aut omatic C om puter was
manufactured by Rem
ingt o
n Rand C orporati on. This became one of the first commercially available
computers to benefit from thevarious advances in computing.
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UNIVAC 1
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Computers
Today
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Supercomputers
Supercom puters are the mostpowerful computers made.
Supercomputers are used toprocess huge amount of data
for complex processes such asnuclear fission.
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Supercomputers
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Mainframe Computers
Mainframe com puters are thelargest among the computers
in use today. Mainframecom puters are used wheremany people in large
organizations are frequentlyaccessing similar information.
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Mainframe Computers
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Personal Computers
Personal C om puters are the most
common computers in use
today.A personal com puter can be a
desktop computer, a notebookor a laptop or a Personal
Digital Assistant.
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Personal Computers
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Notebook or Laptop
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Personal Digital Assistant