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Computer Basic

  •   The word “computer” comes from the word “compute”, which means to calculate”.
  • Charles Babbage is known as the 'Father of computer'.
  •  A computer often referred to as a “data processor” because it can store, process, and retrieve data whenever desired.
  •  The activity of processing data using a computer is called data processing.
  •   Data processing consists of three sub activities:-
(1)         Capturing input data
(2)         Manipulating the data and
(3)         Managing output results.
  • Data: - Data is raw material used as input to data processing. Data can be anything like numerical, non-numerical or a mixture of both.
  • Information: - Information is processed data obtained as output of data processing.
  • Computer: - A computer is an electronic device which performs numerical calculation and logical calculation at high speed and produces information that are expressible in numerical as well as in logical form.
  • Computer Stands For
     C = Common
     O = Operating
     M = Machine
     P = Particulary
     U = Used for
     T = Technical
     E = Education and
     R = Research

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