Unknown Tech

 Hardware is any physical device which we can touch and see. Example:            CPU, Motherboard, keyboard, mouse, RAM, Hard disk are shown in following image:

 Computer is an electronic device. It can store or processed data in the memory. There are two types of memory: RAM   (Random Access Memory) ROM   (Read Only Memory) RAM  :                        RAM is a memory which stores data as it is possible , it is connected to any power supply is called volatile memory. Example:                 It's best example is "main memory" . ROM:                        ROM is a memory which stores data as possible as it is not connected to any power supply. Example:                 It's best example is USB flash drive, memory card, hard disk, floppy disk etc.

  Computer stands for:   C    for  Common O    for  Operating M   for   Machine P    for   Processing U    for   Used For T    for   Trade E    for   Educational R    for    Research