Development of Computer

1. Marc-I

2. ABC

3. ENIAC

4. EDVAC

5. UNIVAC

6. Microprocessor

7. Apple - II

1. Marc - I :- Between 1937 and 1944, in collaboration with a company called IBM (International Business Machine) and under the direction of scientist Howard Aiken, invented the world's first fully automatic electro-mechanical calculation machine. It was named Marc-I.

Marc-I
2. ABC (Atanasoff Berry Computer) : - In 1939, scientists named John Atanasoff and Clifford Berry together invented the world's first "Electronic Digital Computer". In his name and it was named "ABC".  

Atanasoff-Berry Computer
3.  ENIAC (Electronic Numerical Integrator and Calculator)  : - in 1946, American scientists JP Eckert and John Mauchly invented the first fully electronic computer for common tasks, which was named ENIAC.  

ENIAC
4.  EDVAC (Electronic Discrete Variable Automatic Computer)  : - Changing the program was difficult in Aniak computer. To deal with this, Van Neumann gave the concept of Stored Program and developed idvac.  

EDVAC
5.  UNIVAC (Universal Automatic Computer)  : -  This was the first computer which was used for business and other general work. The first commercial computer UNIVAC-I was built in 1954 by GEC (General Electric Corporation). 

UNIVAC
6.  Microprocessor  :- In 1970 the creation of the first microprocessor "Intel-4004" by Intel company revolutionized the field of computer. This made it possible to build smaller sized computers. Which is called micro computer. Intel and AMD are currently the brands producing microprocessors.  

Microprocessor
7.  Apple - II  : - in 1977, the first commercial micro computer was manufactured by the Apple company, which was named Apple-II.  

Apple-II

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