Monday 25 December 2017
Sunday 24 December 2017
Saturday 23 December 2017
Monday 18 December 2017
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Friday 15 December 2017
Wednesday 13 December 2017
Friday 8 December 2017
Thursday 7 December 2017
Wednesday 6 December 2017
Monday 4 December 2017
Friday 1 December 2017
Thursday 30 November 2017
Wednesday 29 November 2017
Tuesday 28 November 2017
Thursday 23 November 2017
Wednesday 22 November 2017
Saturday 18 November 2017
Thursday 9 November 2017
Tuesday 22 August 2017
Tuesday 4 July 2017
Saturday 1 July 2017
Wednesday 28 June 2017
Sunday 25 June 2017
Saturday 24 June 2017
Friday 23 June 2017
Thursday 22 June 2017
Wednesday 21 June 2017
Sunday 4 June 2017
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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