LEARN BASICS ABOUT COMPUTER

BASICS ABOUT COMPUTER

Computer

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What is computer?

Computer could be a device,Which Converts information into data.

Computer is developed by Charles Babbage nearly by nineteenth century

Input    ➤      Process   ➤           Output

Computer Stands For

 C – Commonly

O – Operated

M – Machine

P – Particularly

U – Used For

T – Trade

E – Education

R – Research

What is Data?

Data is defined as facts aur information that stored in a computer.

What is Information?

Data which convey meaning is called information.

 

What are the Components of Computer?

There are two components

   1) hardware ➤input device ,output device, storage device and CPU

C ➤Central

P ➤processing

U➤unit

CPU has two parts

1) ALU (arithmetic logic unit)

2) CU (control unit)

 2) Software➤Application Software , System Software

 

Computer Memory

1)HDD(hard disk drive)

2)RAM (random access memory)

3) ROM (read only memory)

Generations of computers

 

  • 1st Generation computer (vacuum tube 1946)
  • 2nd Generation computer (transistor 1959)
  • 3rd Generation computer (ICs-1965)
  • 4th Generation computer(large scale integrated circuit-1971 to 1985)
  • 5th Generation computer (onwards 1985)

 

 

 

 

 

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