What is Components of Computer
February 10, 2019
Components of Computer
Different components of a computer system are as follows:
Input Devices
The or instruction given to the computer is called input. A
hardware component used to enter and instruction into computer is
called input device.
Input Devices
The or instruction given to the computer is called input. A
hardware component
used to enter and instruction into computer is called input
device. Most commonly used
input devices are keyboard, mouse, microphone, scanner,
digital camera and PC camera.
Keyboard
Keyboard is use to enter text. It contains alphabetic,
numeric and
other keys for entering different type of data.
Mouse
Mouse is a pointing device. It contains the pointer on the
screen. The
user gives instructions to the computer through the mouse.
It
contains different buttons.
Microphone
Microphone is used to enter voice into the computer.
It reads printed text and graphics and translates the in
digital form.
Digital camera
Digital camera is used to take and store picture in digital
form.
PC camera
PC camera is used to create movie and take photos on the
computer.
It is also used to make a video phone call.
Output Devices
The processed into useful information is called output. A
hardware component
used display information to the user is called output
device.
Most commonly used output devices are monitor, printer and
speaker.
Monitor
Monitor is used to
display text, graphics and video output.
Printer
Printer is used to display printed output on paper.
Speaker
Speaker is used to hear sound, music and voice outputs.
System Unit
System unit is a box that contains different electronic
components of the computer
data. All computer systems have a system unit. The
electronic components in
unit are connected to motherboard. Motherboard is also known
as system board
or main board. System board is the communication medium for
the entire computer system.
important component of system unit are as follows:
CPU
CPU stands for central processing unit. It is also called
processor. It is the
brain of the computer. It is the most important component of
a computer. It
interprets and executes the instructions in the computer. A
computer cannot
work without CPU. All computers must have a central
processing unit.
Memory
The hardware component that stores data and instructions
temporarily is
called memory. It is also called memory or main memory. It
consist of electronic chips connected to the motherboard. It
is used to store
input data processing. It also stores data after
until the data is sent to the output device. The main memory
is also called
valuable because use its contents are lost when the computer
is turned off.
Storage Devices
The hardware used store instructions and information
are storage devices. It called non-volatile because its
contents remain
safe when the computer is turned off. Some example of
storage devices are USB flash drive,
hard disk and optical disc etc.