Evolution of computer hardware
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Evolution of Computer Hardware. The Abacus. The Slide Rule (invented early 1600s). The Pascaline ( invented by Blaise Pascal, circa 1642 ) This is the front view. The Pascaline (rear view). The Reckoner (by Gottfried Wilhelm von Leibniz, circa 1700).

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The slide rule invented early 1600s
The Slide Rule (invented early 1600s)


The pascaline invented by blaise pascal circa 1642 this is the front view
The Pascaline(invented by Blaise Pascal, circa 1642)This is the front view.



The reckoner by gottfried wilhelm von leibniz circa 1700
The Reckoner(by Gottfried Wilhelm von Leibniz, circa 1700)


The difference engine by charles babbage 1822
The Difference Engine(by Charles Babbage, 1822)


The analytical engine by babbage circa 1830
The Analytical Engine(by Babbage, circa 1830)


Joseph marie jacquard s loom circa 1830 note the punch cards
Joseph Marie Jacquard’s Loomcirca 1830(note the punch cards)




The mark i 1942 8 feet tall 51 feet long 5 tons
The Mark I (1942)(8 feet tall, 51 feet long,5 tons)


The mark i used paper tape to store data and program instructions
The Mark I… used paper tape to store data and program instructions






Harvard mark ii
Harvard Mark II the Mark I



Univac the first general purpose computer for commercial use late 1940s
UNIVAC… the Mark Ithe first general-purpose computer for commercial use (late 1940s)


After vacuum tubes came transistors this is the first point contact transistor
After Vacuum Tubes came Transistors the Mark IThis is the first point-contact transistor.


Ibm 701 1953
IBM 701 (1953) the Mark I


Ibm 704 1956
IBM 704 (1956) the Mark I


Ibm 7090
IBM 7090 the Mark I


Ibm 360 1964
IBM 360 (1964) the Mark I


Ibm s 390
IBM S/390 the Mark I



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