A motherboard is a printed circuit board
found in all modern computers which holds
many of the crucial components of the
system, such as the CPU.
Power supply unit
The power supply unit's job is to convert
the power provided from the outlet into
usable power for the many parts inside the
Large bundles of coloured wires extend
from the opposite side of the power supply
unit into the computer.
Motherboard external ports
Mouse and keyboard ports.
The USB port.
The audio ports for a mike and
Complementary metal oxide semi
CMOS technology is used in
microcontrollers, static RAM and other
digital logic circuits.
A GPU is a co
processor that takes on
graphical calculations and transformations
so that the main CPU does not have to be
burdened by them.
The use of a GPU can greatly increase the
performance of a device, especially when
used for tasks such as 3D gaming.
Central processing unit
A central processor unit, is the hardware
within a computer system or Smartphone
which carries out the instructions of a
computer program by performing the basic
arithmetical, logical, and input/output
operations of the system
A modern CPU is normally small and
square with many short, rounded, metallic
connectors on the underside.
A device that projects computer output
onto a white or silver fabric screen on the
wall, ceiling or a mounted tripod.
In the 1980s, the first data projectors
weighed more than 40 pounds and When
colour units came out they weighed even
more because of their three CRTs which
are red, green and blue.
A hardware device connected to a
computer's sound card that outputs
sounds generated by the computer.
It allows you to record sound and then
play it out loud.
A printer is a device that accepts text and
graphic output from a computer and
transfers the information to paper, usually
to standard size sheets of paper.
A scanner is a device that captures
images from photographic prints, posters,
and many more for computer editing and
It scans images, printed text, handwriting
or an object and converts it to a digital
A graphics card is a piece of hardware
installed in a computer that is responsible
for rendering the images onto to display
The graphics cards GPU processes the
data and changes it into a signal to the
A sound card is an internal device that
processes audio files in order to provide
quality playback through computer
The typical sound card has an interface
available at the back of the computer with
input and output ports.
A graphics tablet is a computer input
device that enables a user to hand
images and graphics.
It allows you to draw a picture onto a
computer screen without having to use
mouse or keyboard.
The keyboard is an input device designed
to enter text, characters and other
commands into the computer.
Characters are engraved on to the keys
and each press corresponds to a written
A touch screen is an electronic display that
can detect the presence and location of a
touch within the display area.
The term refers to touching the display
screen with a finger or a hand.
A mouse is a pointing device that functions
by detecting two dimensional motion
relative to it’s supporting surface.
It’s a device that controls the movement of
the cursor or pointer on a displayed
A webcam is a video camera that sends
images from one computer to another
In 1991, the first webcam was up and
running at Cambridge University’s
computer science department.
A microphone is a sensor that converts
sound into an electrical signal.
Microphones are used in many
applications such as telephones, radios,
hearing aids, tape recorders and many
RAM stands for Random Access Memory.
Ram provides space for your computer to
read and write data temporarily.
Every time you add more RAM you
reduce the amount of times your CPU can
read data from the hard disk.
ROM stands for Read Only Message.
ROM is a computer memory chip that
contains permanent data.
Even if you turn off your computer, the
contents of ROM will remain.
Every computer has ROM, even if it is
The hard disk can store 500GB and can
The hard disk was first published in 1956.
A flash drive can store up to 64GB.
A flash drive is a place ware you store
data when you have run out of GB.
It can hold up to 2TB.
Optical storage can store up to 104
The optical drive was first published in
An SD card can store up to 32GB.
The SD Card was first published in the
It is an ultra small flash memory card
designed to provide high
in a small size.