Sunday, 13 November 2016

LEARN COMPUTEER

COMPUTER


computer fundamentals



COMPUTER is an electronic device which takes input from the user through an input device, process the data through central processing unit  (unit), and gives the output  called information through output device.

Examples of input device:
          Keyboard, ….keyboard consists of letters, numbers, special characters and functional keys.   Keyboard is used to feed the data for various purposes. 

Exampeles of output device:

          VDU….visual display unit,  which is used to display the processed data, the information produced is meaningful and user friendly .


how a computer can understand us ?


computer knows only machine language. we need to convert high level language into machine language.  Machine language is in binary digits 0's and 1s.  Any thing what we are giving as input is converted into binary form.  

PROGRAM: A set of instructions is called a program.

HIGH LEVEL LANGUAGES :  Earlier days we have COBOL, BASIC, etc.  But now a days every one is using Python, C, C++, etc. due to requirement and necessity of the people we are shifting to new languages.  

IN OUR TUTORIAL, WE ARE PROVIDING VIDEOS ALSO TO UNDERSTAND CLEARLY. 






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