Evolution of Computers : First Time in Computer History

Today, Computers can be seen at your Home, Schools or Colleges, Universities, Companies, Hospitals , Security Stations etc. We can say, Computers have become our basic need.

But How did we get this wonderful machine, we call COMPUTER ? Who invented Computer? How the Computer Inventions started ?   

Answers are not as simple. Computer was not invented by one single man. Many Inventors contributed by their major inventions in the history of computers.

The word "computer" was first recorded as being used in 1613 and was originally used to describe a human who performed calculations or computations.

Here is the overview for some major inventions in the Computer History  :

Have a look on Generations of Computer :


1. First Generation : 1946-1959 based on Vacuum tubes.
2. Second Generation : 1959-1965 based on Transistors.
3. Third Generation : 1965-1971 based on Integrated Circuits.
4. Fourth Generation : 1971-1980 based on VLSI microprocessor.
5. Fifth Generation : 1980-onwards based on ULSI microprocessor.



Father of Computer : Charles Babbage


In 1822, Charles Babbage purposed and began developing the Difference Engine, considered to be the first automatic computing engine.

Then, In 1837 Charles Babbage proposed the first general mechanical computer, the Analytical Engine which was the first general-purpose computer concept.



Father of Modern Computer : 

Alan Turing in 1936



First programmable computer :

Z1  by Konrad Zuse in 1936




First Digital Computer : 

ABC (Atanasoff-Berry Computer) by John Vincent Atanasoff and Cliff Berry in 1937 




The Transistor 

by John Bardeen, Walter Brattain & Wiliam Shockley in 1947/48



 First Commercial Computer : 

UNIVAC Computer by John Presper Eckert & John W. Mauchly in 1951




The First Computer with RAM : 

Whirlwind machine by MIT in 1955



The Integrated Circuit : 

Also known as 'The Chip' by Jack Kilby & Robert Noyce in1958



The First Minicomputer : 

PDP-1 by Digital Equipment Corporation In 1960



Random Access Memory : 

RAM by Robert Dennard in 1966




The First Desktop Computer : 

HP 9100A  by Hewlett Packard in 1968



The First Microprocessor :

Intel 4004 by Intel in 1971



The "Floppy" Disk  :
Floppy by Alan Shugart & IBM in 1971



The First Personal Computer : 

Altair 8800 in 1975, Ed Roberts coined the term "personal computer" 



The First Laptop or Portable Computer : 

IBM 5100 in 1975



MS-DOS Computer Operating System : 

for IBM PC`s by Microsoft in 1981



The first Home Computer with a GUI :

Apple Lisa Computer in 1983
Apple Macintosh Computer in 1984.



Windows Operating System :

Microsoft Windows by Microsoft in 1985




Have Fun!



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