2021 Full From SMPS,UPS,CPU,RAM,ROM,LED,

1) What's Computer ?

   = Computer Is a Computing Machine It is Use At Bank, School, College, in dustvies etc

 

                                   Mouse                                        

 

    1) Left Click

      

    2) Right click 

    3) Scroll

Harddisk = ( It is Storage Device Of a Computer)

Full form

SMPS =  Switch Mode Power Supply 

UPS = Uninterruptible Power Supply

CPU = Cantral Processing Unit

RAM = Random Access Memory

ROM = Read Only Memory

LED = Light Emitting Diode

LCD = Liquid Crystal Display

CRT = Cathode Ray Tube

ALU = Arithmetic Logic Unit