Transcript PARTS OF A COMPUTER - Open Door Adult Learning Centre

WELCOME TO
INTERACTIVE LEARNING
At the end of this training session you will:
• be familiar with the different parts of a
computer
• be able to use the mouse and the keyboard
• have experience of interactive learning
WHAT IS INTERACTIVE
LEARNING?
• It’s a fun way to learn
• It’s entertaining and exciting
• Learning takes place through various
media such as video, sound, graphics,
animation and text
PARTS OF A COMPUTER
MONITOR
CPU (central
processing unit)
MOUSE
KEYBOARD
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HARDWARE
Hardware refers to the computer physical components, such
as:
•Monitor
•Keyboard
•CPU
•Hard disk
•Mouse
•Modem
•Printer
•CD-ROM drive
Let’s take a look at the typical hardware parts of a computer
in more detail.
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MONITOR
• The monitor is the screen on
which the computer displays
information
• This information includes the
instructions you send to the
computer and the results the
computer returns
• Another name often used for the
monitor is visual display unit
(VDU)
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MOUSE
• A mouse is known as an input device
• A mouse is held in the hand
• Moving the mouse causes the mouse
pointer  on the screen to move
• The pointer  is normally an arrow
shape, but can change depending on
the task being performed
• As a general rule the left mouse
button is used unless an instruction
specifies otherwise
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KEYBOARD
• The keyboard is known as an input
device
• It is used to type instructions and enter
information as letters or numbers
• When you press a key, an electronic
signal is generated and sent to the
computer
• The computer acknowledges your action
by sending the same signal to your
screen, making the letters you type
appear in front of you
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PRINTERS
• A printer is known as an output
device
• A printer prints to paper the
information processed by the
computer
• Dot-matrix and inkjet printers
can print both text and
graphics
• Laser printers can print both
text and graphics of a higher
quality
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FLOPPY DISKS
• A floppy disk is in a solid plastic
case and is usually 3½” diameter
• Information can be recorded
onto the magnetic surface of the
disk
• The disk is portable, so can be
removed from the computer
• Floppy disks have quite small
storage capacity but are easy to
transport
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CPU (central processing
unit)
• The CPU is the “brain” of the
computer system
• It deals with all the information,
directs its travel and processes it
• The CPU stores the hard disk – the
part of the computer that holds all
the programs, documents and data
when the computer is switched off
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CD-ROM
• A CD-Rom contains information in
ROM (read-only memory) format
• More recently computers have
the capability to save (write)
information onto blank CD ROM
disks
• The arrival of DVD drives now
enables computer users to save
vast amounts of information on a
single DVD disk
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THAT’S IT!
Congratulations! You’ve completed your
first step to learning about the
computer!
Click here to have a go at the Quiz!