3rd Class Computers History of Computer An Electro-Mechanical Computer- Mark - I

An Electro-Mechanical Computer- Mark - I

Category : 3rd Class

*     An Electro- Mechanical Computer- Mark - I  



Mark - 1 was probably the last electro mechanical computer which was invented by Prof. Howard Aiken in the U.S.A. Mark-1 was constructed in 1943. The main advantage of the Mark I was that it was fully automatic?it did not need any human intervention once it started. It was the first fully automatic computer to be completed. It was also more reliable than the early electronic computers. This machine was capable to multiply two 10- digit numbers in 5 seconds. It was the first machine, which could perform according to pre-programming. It was also known as ASCC (Automatic Sequence Controlled Computer). Mark-1 is considered to be' the beginning of the era of the modern computer' and 'the real dawn of the computer age'.  






 Mark-1 was invented by Prof. Howard Aiken. The credit of invention goes to which one of the following countries?

(A) USSR                                                             

(B) UK

(C) USA                                                               

(D) France

(E) None of these  


Answer: (C)


Correct Option:

(C) USA: The credit of invention of Mark-1 goes to USA as he was the citizen of the USA.

Incorrect Options:

(A) USSR : Is the Incorrect.

(B) UK : Is the Incorrect.

(D) France : Is the Incorrect.

(E) Option (E) is Incorrect.    



 Mark-1 was the electro-mechanical computer and it had many advantages. It did not need any human intervention once started that means it was fully __________________.

(A) Automatic                                                   

(B) Manual

(C) Artificial                                                        

(D) Both (A) and (B)

(E) None of these  


Answer: (A)


Correct Option:

(A) Automatic: Mark-1 was a fully automatic computer.

Incorrect Options:

(B) Manual: Mark-1 was an automatic computer that's why option (B) is incorrect.

(C) Artificial: Is the Incorrect.

(D) Option (D) is Incorrect.

(E) Option (E) is Incorrect.  



You Know.jpg

  • Charles Babbage has been given the title of "Father of Modern Computers."
  • Pascaline can be named as the first calculator.  




  • Abacus: A calculating tool that is used primarily in parts of Asia for performing arithmetic processes.
  • Punched Cards: Is a piece of stiff paper that contains digital information represented by the presence or absence of holes in predefined positions.  




  • It took hundreds of years to make the kind of computer you see today.
  • Scientists are still trying to make more advanced and powerful computers.
  • Resources on Net: http://www.wikipedia.org
  • Related Topics : Growth of the Modern Computer: Chapter 2  



*      Abbreviations

ENIAC   -        Electronic Numerical Integrator and Computer                 

ASSC     -        Automatic Sequence Controlled Computer  

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