Who discovered the computer?

Answer 1

No one "discovered" the computer. It was the result of many, many mathematicians, engineers, and other people working over a long period of time. The discoveries eventually came together in the mid-1940s with the advent of electronics and under the pressure of wartime need for fast calculation. Some names and terms for you to look up (and please do the research yourself - it's not that hard):

Charles Babbage
Ada, Countess of Lovelace
The Jacquard loom
Hermann Hollerith
John von Neumann
Alan Turing
John Mauchly and J. Presper Eckert
ENIAC, Zeus, Whirlwind, Enigma

Charles Babbage FRS (26 December 1791 – 18 October 1871) was an English mathematician, philosopher, mechanical engineer and (proto-) computer scientist who originated the idea of a programmable computer. Parts of his uncompleted mechanisms are on display in the London Science Museum. In 1991, working from Babbage's original plans, a difference engine was completed, and functioned perfectly. Built to tolerances achievable in the 19th century, the finished engine indicated that Babbage's machine would have worked. Nine years later, the Science Museum completed the printer Babbage had designed for the difference engine; it featured astonishing complexity for a 19th century device. This is cut and pasted from Wikipedia

Answer 2

Note: Only natural things can be "discovered". When humans make things, they are "invented"

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Charles Babbage FRS (26 December 1791 � 18 October 1871) was an English mathematician, philosopher, mechanical engineer and (proto-) computer scientist who originated the idea of a programmable computer. Parts of his uncompleted mechanisms are on display in the London Science Museum. In 1991, working from Babbage's original plans, a difference engine was completed, and functioned perfectly. Built to tolerances achievable in the 19th century, the finished engine indicated that Babbage's machine would have worked. Nine years later, the Science Museum completed the printer Babbage had designed for the difference engine; it featured astonishing complexity for a 19th century device. This is cut and pasted from Wikipedia