28-05-2014, 03:13 PM
Computer Concept
Computer Concept[.ppt (Size: 153 KB / Downloads: 14)
What’s a Computer?
A computer is an electronic machine that takes input from the user, processes the given input and generates output in the form of useful information.
The unique capabilities and characteristics of a computer:
Speed
Storage capacity
Accuracy
Reliability
Versatility
Diligence
Evolution of Computers
Manual Computing Devices: Sand table, Abacus, …
Automated Computing Devices: difference engine, analytical engine, Colossus, …
Charles Babbage: A professor of mathematics a the Cambridge University is considered to be the father of modern computer.
Generations of Computers
First Generation Computers
Employed during the period 1940-1956
Used the vacuum tubes technology for calculation as well as for storage and control purpose.
Advantages:
(1) Fastest computing devices of their time;
(2) Able to execute complex mathematical problems in an efficient manner.