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Napier's Rods
Invented by a scottish man named John Napier. The main purpose of the device was to help people perfrom multiplication -
Pascal's Adding Machine
Created by Blaise Pascal. It was the first mechanical adding machine. -
Leibniz Calculator
Pefected by Gottfried Leibniz. It could do more than add and subtract, it multiplied, divided, and could find the square root of numbers. It was mechanical and worked by hand but a crank was added to speed up work -
Slide Rule
The slide rule was a manual device used for calculation. It was in a simple form of a ruler with a moveable middle piece -
Weaving Machine
A frenchman by the name of Joesph Marie Jacquard created a way to help weaving machines create patterns on cloth. The used cards with hles punched in them -
The Difference Engine
Invented by Charles Babbage. The engine used cards with holes punched in them to power their gears, and used steam to run -
Analytic Engine
Also created by Charles babbage. It was a steam powered engine and was one of two engines created. The idea was to have them guide the machine with cards with holes punched in them -
Z1 Computer
first freely programable computer -
Atanasoff Berry Computer
It was built by Prof. John V. Atanasoff and a graduate student named Clifford Berry. It weighed 750 lbs and had a memory storage of 3,000 bits -
Colossus
A vacuum tube computing device that broke Hitler
s codes during WWII -
Harvard Mark I computer
the harvard mark 1 computer was created by John Eckert and John Mauchly -
ENIAC
The worlds first electronic large scale general purpose computer. It was built by Mauchly and Eckert. It was activated at University of Pennsylvania in 1946 -
UNIVAC
The first commercially successful computer -
Vacuum Tube Based Technology
Vacuum tubes are electronic devices that are made of glass or steel vacuum envelope. First commercial computers used vacuum tubes -
IBM 1620
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Transistor Based Technology
The transistor was invented in 1948. It almost completely replaced the vacuum tube. It costed less, weighed less, and gaveused less power than the vacuum tube. -
The internet (ARPAnet)
the internet began as a military network -
Integrated Circuits Based Technology
The first integrated circuit was demonstrated by Jack Kilby in 1958. "It was 7/16'' wide and contained two transistors. -
CRAY 1
The worlds first electronic figital computer -
Apples/ MACs
The apple was designed by Steve Wozniak and Steve Jobs. Apple was the first to have a "windows" type graphical interface and computer mouse. -
Large Scale Integration
Early work station with mouse -
The age of networked computing, Internet and the WWW
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Hyper Text System
Tim Berners-Lee created the hypertext system called the world wide web -
Windows 3.1
Bill gates' microsoft copr. released windows 3.1 . The program made IBM and IBM- compatible PC's more user friendly by integrating graphical user interface into the software -
Large internet service providers
Such as MCI, Sprint, AOL and UUNET began offering service to a large amount of customers -
Personal Digital Assistants
Such as the Palm pilot became available to customers. The could do numeric calculations, plays games, music and download information from the internet -
Iphone
The first apple iphone is released -
Iphone 3g
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Iphone 3gs
Updated version of the apple iphone -
iphone 4
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Iphone 4s
updated version of the apple iphone -
Iphone 5
The updated version of the iphone is released -
Abacus
It was created by the Chinese, People used it to keep track of numbers. It was thought to be the first calculaotor
