Monday, 25 December 2017
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Friday, 15 December 2017
Wednesday, 13 December 2017
Friday, 8 December 2017
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Monday, 4 December 2017
Friday, 1 December 2017
Thursday, 30 November 2017
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Tuesday, 28 November 2017
Thursday, 23 November 2017
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Saturday, 18 November 2017
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Tuesday, 22 August 2017
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Saturday, 13 May 2017
COMPUTER
Introduction: A computer is an
electronic machine which takes data through input device then processes them
and generates its result through output device. The word “computer” came from
the word ‘compute’ which means ‘calculate’.
Functionalities
of Computer:
(i)Computer
takes data as input,
(ii) It
stores the data into the memory and uses them when required,
(iii) It processes
the data and converts these into useful information and
(iv)It
generates the output of the given input by the users.
Advantages
of Computer:
(i)
High Speed:
Computer is a very fast and high speed machine.
(ii) Accuracy: The calculations of computers
are very accurate.
(iii) Storage Capacity: It can store the large amount of data.
(iv) Diligence:
Unlike human beings, a computer is free from tiredness, monotony and lack of
concentration and it can do repeated work with same speed and accuracy without
error.
(v)Versatility: A computer is a very versatile
machine and it is used to solve the problems related to various fields.
(vi) Reliability:
A computer is a very reliable machine and it is designed to make maintenance
easy.
(vii) Automation:
Automation
means ability to perform the given task automatically. So, computer is an automatic
machine.
Disadvantages of
Computer:
(i) Dependency:
A computer cannot take any decision of its own. It depends on human beings to
perform the given task.
(ii) Environment: The operating environment of a
computer should be dust free and suitable.
(iii) No Feelings:
Computer has no feelings or emotions like human beings.
Monday, 8 May 2017
Sunday, 30 April 2017
Thursday, 27 April 2017
Wednesday, 26 April 2017
Monday, 17 April 2017
Friday, 14 April 2017
Thursday, 13 April 2017
Wednesday, 12 April 2017
Monday, 10 April 2017
Sunday, 9 April 2017
Friday, 7 April 2017
Wednesday, 5 April 2017
Tuesday, 4 April 2017
Monday, 3 April 2017
Sunday, 2 April 2017
Friday, 31 March 2017
Monday, 27 March 2017
Sunday, 26 March 2017
Wednesday, 15 March 2017
Monday, 13 March 2017
Thursday, 23 February 2017
Monday, 30 January 2017
Sunday, 29 January 2017
Thursday, 26 January 2017
Tuesday, 24 January 2017
Monday, 23 January 2017
Saturday, 21 January 2017
Tuesday, 17 January 2017
Thursday, 12 January 2017
Sunday, 8 January 2017
Wednesday, 4 January 2017
Tuesday, 3 January 2017
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