Basics of Computer

Hardware
Computer Hardware is defined as the physical part or
component of a computer system which can be felt, seen and
touched.
Types of Hardware Component used in Computer
 For better understanding, different and common types of
hardware devices and their uses are mentioned below.
o Caninet Case
o Motherboard
o Ram
o Hard Disk
o CPU
o SMPS (Switching Mode Supply)
o Keyboard
o Mouse
o Monitors
o Printers
o Speakers etc
 These are the most commonly used and common
hardware devices. As mentioned above, some of the

, devices are used for better functionality or to provide
additional features. like speakers and printers.
 They are not used in the boot process of the PC, and when
found missing, the PC cannot start or boot on its own.
They are not responsible for booting computers.
 But some of the devices mentioned above are responsible
for the booting process of PC, for example, power supply,
CPU, and computer memory [RAM] are essential hardware
devices that are solely responsible for the booting of the
PC and its better computer functionality.
Cabinet Case
 Cabinet case comes in various shape and sizes but
commonly used case is a tower case whose height ranges
from 15 to 25 inches.
 They enable different types of hardware devices to be fit in
themselves to make it a whole and all the devices are
connected to the case using screws.
 The commonly attached hardware devices to the PC case
are Power supply, Motherboard, CPU, Ram, Hard disk,
DVD-RW
Motherboard
 The computer motherboard or mainboard is nothing but a
piece of PCB (printed circuit board) where all the other
devices are connected to it using cables & wires.