Transcript Evolution of Computer Hardware

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)
The Difference Engine
(by Charles Babbage, 1822)
The Analytical Engine
(by Babbage, circa 1830)
Joseph Marie Jacquard’s Loom
circa 1830 (note the punch cards)
Hollerith Machine
Hollerith Detail
The Mark I (1942)
(8 feet tall, 51 feet long, 5 tons)
The Mark I…
used paper tape to store data and program
instructions
Howard Aiken, a Ph.D student at
Harvard University inside the Mark I
Electronic Numerical Integrator
and Computer (ENIAC)
Another view of ENIAC
Programming ENIAC by
manipulating its vacuum tubes
Harvard Mark II
MIT Whirlwind (1948)
UNIVAC… the first general-purpose
computer for commercial use (late 1940s)
After Vacuum Tubes came Transistors
This is the first point-contact transistor.
IBM 701 (1953)
IBM 704 (1956)
IBM 7090
IBM 360 (1964)
IBM S/390
And the future of computers?