Definition Of Computer
A computer is an "Electronic Device" or a "Machine" which is mainly used to taking the input data from the user and doing the arithmetical & logical operations by the CPU (Central Processing unit) and then finally get the information from the machine is called a "Computer".
It can also store the data or information in the machine and it can retrieve the information whenever we want the data.
1) Data: A data is nothing but more collections of the basic Facts & Figures with out any sequence. when the data is collected as facts & figures then there is no meaning at the time.
Example : Name Of The Student, Name Of The Employee, Name Of The Trainer .
Example : Name Of The Student, Name Of The Employee, Name Of The Trainer .
2) Processing: 'Processing' is the set of instructions that is given by the user or related data which is very meaningful information for the user. The Work of processing is may be like as Calculations, Comparisons, or Decisions taken by the computer.
3) Information: Information is one of the end point or final output of any processing work is called Information.
A computer is consists of 2 major components . They are :
1) Hardware
2) Software
➤ Hardware
Hardware is nothing but a collection of physical components in a computer which can touch the parts physically. They are classified in to different types.They are :
1) CPU (Central Processing Unit)
2) Ram (Random Access Memory)
3) Rom (Read Only Memory)
4) Hard disc
5) CD - Drive (Compact Disc Drive)
6) Mother Board
7) Keyboard
8) Mouse
9) Cooling Fan
10) Registers
11) CMOS (Complimentary Metal Oxide Semi-Conductor)
12) SMPS (Switch Mode Power Supply)
