The name computer means a computing device. First decide which computer specification you want to know about. Then search google.

year i dont rem
name of 1st comp was ABACUS

John Vincent Atanasoff in 1945-General Purpose Programmable Computer

i think in 1960s computer invented. but is largely using by end of 70s and 80s.

"Who invented the computer?" is not a question with a simple answer. The real answer is that many inventors contributed to the history of computers and that a computer is a complex piece of machinery made up of many parts, each of which can be considered a separate invention.

Although Abacus invented sometime between 1000 BC and 500 BC is classed as the first mechinical calculating instrument still used in china gave inspiration to the modern invention.
Here is the basic chronology up to 1985

1936 Konrad Zuse - Z1 Computer First freely programmable computer.
1942 John Atanasoff & Clifford Berry
ABC Computer Who was first in the computing biz
1944 Howard Aiken & Grace Hopper
Harvard Mark I Computer
1946 John Presper Eckert & John W. Mauchly
ENIAC 1 Computer 20,000 vacuum tubes later...
1948 Frederic Williams & Tom Kilburn
Manchester Baby Computer & The Williams Tube Baby
1947/48 John Bardeen, Walter Brattain & Wiliam Shockley
The Transistor No, a transistor ...more

At 27 tonnes and the size of an entire room, the world's first computer is just as elaborate as its name suggests ENIAC or Electronic Numerator Integrator Analyser and Computer. True to form, ENIAC also makes big noises, cracking and buzzing while performing an equation of 5,000 additions. Before the invention of ENIAC, it took a room full of people to calculate a similar equation. Basic answer 1945!

first computer was abacus