Introduction To Computer | What Is Computer | Characteristics Of Computer

Introduction to computer :-

COMPUTER : Computer is an electronic device which is capable to receiving information (data) in a particular form with a predetermined but variable set of procedural instructions (program) to provide a result in the form of information or signals which we can save for future.

Introduction To Computer

•Data:-Raw fact
•Program:-Set of instruction
•Information:-When data process and
 represent any meaning
•Processing:-It means to perform arithmetical and logical operation

Characteristics of computer :-

1. Automation : Computer is an automatic machine.

2. Speed : Computer carry out instructions in less then a million of a second. The speed of computer ia measured in a terms of htz, mhtz, ghtz.

3. Accuracy : Computer can do the calculation without error and very accurately. The degree of accuracy of computer is very high and every calculation is performed with the same accuracy. If we find wrong result the responsibilities goes to the user. Such result is known as GIGO(Garbage In Garbage Out)

4. Storage : Computer can store large volume of data and information on magnetic media. The computer has an in-built memory where it can store a large amount of data with appropriate formate.

5. Power of remembering : Computer can remember data for us.  Computer has not their own iq(Intelligence Quotient). Computer doesn't work without instructions.

6. Versatility : Computer are versatile, they perform multiple and different tasks at the same time. Computer has the capacity to perform completely different type of work .

7. Diligence : Computer can work for hour without creating any error. It is free from tiredness, lack of concentration, weakness, etc.

8. Consistency : Computer repeat any task again and again.

Generation of computer :-

genration of computer,

>1st Generation (1944-1956)

   • Memory - Magnetic drum
   • Language - Machinery language
   • Technology used - Vacuum tube
   • Output gain by printer
   • Computer name-ENIAC, EDVAC, EDSAC, UNIVAC

    ENIAC(Electronic Numeric Integrated
        And Computer)
   Founder-John Mauchly & J. Presper Eckert

   EDVAC(Electronic Discrete Variable
                Automatic Computer)
   Founder-John Von Neumann

   EDSAC(Electronic Delay Storage
   Automatic Calculator)
   Founder-Maurice Wilkes

  UNIVAC(Universal Automatic Computer)
  Founder-John Mauchly
       

>2nd Generation (1965-1975)

   • Memory - Hard disk (IBM)[International
     Business Machine ]
  • Language - High level language
  • Technology used - Transistor
  • Computer name - IBM 7094 series, IBM
                                  1400 series, CDC164,etc.

>3rd Generation (1965-1975)

   • Technology used-IC(Integrated Circuit)
   • Language - High level language
   • Output gain by monitor
   • Computer name - IBM370, IBM system
                                    360, UNIVAC1108 and
                                    UNIVACAC9000.

>4th Generation (1975-1990)

   • Technology used - Micro processor
   • Mouse is used in 4th generation
   • Language used - Procedural language
   • Computer name - Apple Macintosh &
                                    IBMPC

>5th Generation (1990-present & beyond)

    • Technology used - Artificial intelligence
                        (John MC Carthy)

>6th Generation (Future)

   • Technology used - Cloud Computing
                            (Larry Ellison)


Tags:- Introduction to computer, what is computer, characteristics of computer, Introduction to computer | what is computer | types of computer, Generation of computer, 

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