Transcript Function of the Computer Parts COB 1 Part 6 1.6 Inside the system unit [Hardware] Class: ________________ Name: ________________ COB: COMPUTER BASICS Function of the Computer Parts COB 1

Function of the Computer Parts
COB 1 Part 6
1.6 Inside the system unit
[Hardware]
Class: ________________
Name: ________________
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.6 Computer System
System4.
unit
3.
5.
6
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10.
COB:
COMPUTER BASICS
9.
Function of the Computer Parts
COB 1 Part 6
1.6 Computer System
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.6 Inside the system unit
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.6 Inside the system unit
1.
5.
2.
6.
7.
3.
4.
COB:
COMPUTER BASICS
8.
9.
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware)
• A computer is made up of different parts
• Each part performs different function or operation
Process
1. data
2.
3.
4.
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware)
• A computer is made up of different parts
• Each part performs different function or operation
Process data
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.7 Function of Parts of a Computer System
(Hardware – system unit)
• The casing of the system unit (Cont’d)
• Comes in a variety of design
system unit
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware – system unit)
• The casing of the system unit (Cont’d)
• Comes in a variety of design
system unit
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware – motherboard)
• All processing takes place in
the system unit.
• The system unit contains
• the motherboard
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware - motherboard)
the motherboard
COB:
COMPUTER BASICS
A motherboard is the central
printed circuit board (PCB)
that holds many of the
crucial components of the
system, such as the CPU,
memory, graphics adapter
and sound card while
providing connectors for
other peripherals such as
printers, scanners, hard
disks, microphones, web
cams, and digital cameras.
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a
Computer System
The BRAIN
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware - CPU)
• the processor, Central Processing
Unit (CPU), also called processor
– It is the brain of the computer
– It processes data and
instructions
– It takes instructions and
executes them
– It coordinates and controls flow
of data between different parts
of the computer
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a
Computer System
The Memory /
Storage Devices
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware – Memory/ Storage)
• For a computer to work, it needs to
remember
– Instructions for the computer’s
hardware (programs)
– User’s information/ data
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.7 Function of Parts of a Computer System
(Hardware – Memory/ Storage)
System Unit contains the Primary
memory and some secondary
memory:
• Primary storage / memory
• Read Only Memory (“ROM”)
• Stores data permanently
• Random Access Memory (“RAM”)
• Stores data temporarily
• Secondary Storage/ Storage
• Hard disk
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware – Memory/ Storage)
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware – Memory/ Storage)
– Primary memory
• Stores data currently or frequently used
Primary Memory
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware – Memory/ Storage)
Primary Memory
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware – Memory/ Storage)
– Secondary storage media
• Stores data and programs permanently
• Able to store large amount of data
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System
(Hardware – Memory/ Storage)
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a
Computer System
Input Devices
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Input Devices
Input Devices
• All these are input
devices
• Scanner
• Scans information on
hard copy into the
computer
• Microphone
• Captures sound into
the computer
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Input Devices
• The keyboard and mouse
• Important tools because they are used to
control the computer
• Designs have improved greatly
Input Devices
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Input Devices
• Used to input data to the computer by typing.
• It is used to type words or numbers into the computer
system.
Inputs data
corresponding to the
key being pressed
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.7 Function of Parts of a Computer System –
Input Devices
• Used to input data to the computer by clicking
• It is a pointing device that directs a pointer on the
monitor.
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Input Devices
•Input sound/ audio into the computer system
microphone
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.7 Function of Parts of a Computer System –
Input Devices
•Reads or scans information into the computer.
•The information can be text or graphics.
•It is usually to scan photographs
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Input Devices
• The unit that plugs into a game console to control the
game play.
• Commonly used in computer games.
Game console controller.
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.7 Function of Parts of a Computer System –
Input Devices
• Barcode reader:- reads information on a barcode.
Commonly used in libraries and supermarkets
Barcode reader
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.7 Function of Parts of a Computer System –
Input Devices
•Reads marks made on specially printed forms and
inputs into computer
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Input Devices
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a
Computer System
(Output Devices)
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Output Devices
• All these are output devices
• Monitor
• Like a television screen
• Displays information from the data
inputted
• Printers
• Display information on paper
• Hard copy
• Some prints in colour; others print in
black only
• Speakers
• Produces sound and music generated
by the computer
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Output Devices
• The display unit
• Displays information onto a screen
• Main way computer communicates with users
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Output Devices
• The display unit
• Many types invented over the years
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Output Devices
• The display unit
• Many types invented over the years
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.7 Function of Parts of a Computer System –
Output Devices
• Printers: Sends information produced by the
computer system in a printed form.
• Prints text or illustrations onto paper
• There are different types of printers.
• Thermal printer
• Main types:
• Print created by pushing
heated pins against heat
sensitive paper
• Cheap and fast
• Used widely in supermarket
checkouts and ATM
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Output Devices
• Printers (Cont’d)
• Inkjet printer
• Print created by spraying
dots of ink onto paper
• High quality text and
graphics
• Slow
• Cost of printer low but
cost of ink is high
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.7 Function of Parts of a Computer System –
Output Devices
• Printers (Cont’d)
• Laser printer
• Print created by
• Applying ink powder (toner) to
drum
• Toner on drum is then heated
and applied to paper
• Very high quality text and graphics
• Fast
• Expensive
• Toner is sold in cartridges
• Expensive but can print more
pages than an inkjet printer
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Output Devices
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.7 Function of Parts of a Computer System –
Output Devices
• Printers (Cont’d)
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Output Devices
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a
Computer System
(Other Devices)
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Input/ Output Devices
Touch screen:- input information by touching the
screen. Commonly used in PDA, hand phones, bus
terminals, tourist kiosks, and shopping centers.
PDA
Touch Screen
GPS
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Input Devices – Data logger
• Data logger
• An electronic instrument that has a microprocessor, data
storage and a sensor
• Used to record measurements such as temperature
• A computer is used to display the measurements
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.7 Function of Parts of a Computer System –
Input/ Output Devices
• Printers (Cont’d)
• Multifunctional printers
• Multiple functions
• Printing, scanning,
copying and faxing
• Convenient
• Disadvantages
• Over-using one function
may interfere with other
functions
• More likely to break down
due to the many functions
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.8 Cables
• Wired and wireless computer parts
• Computer parts classified into wired and wireless ones
• Wired computer parts
• Physically connected by wires or cables
• Connected to attachments called ports
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.9 Network
• Wired and wireless computer parts
• Wireless computer parts
• No physical connection
• Example: wireless router,
cordless mouse
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.10 Q&A
1.
2.
3.
COB:
Keyboard, mouse, flat-bed scanner, microphone
Monitor, speaker, laser printer, inkjet printer (Other
answers: projector)
CD-ROM drive, hard disk (Other answers: thumb drive)
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.10 Q&A
1.
2.
3.
4.
COB:
Inkjet
Laser
Dot matrix
Laser
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
1.10 Q&A
1.
2.
3.
4.
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6.
7
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9.
COB:
COMPUTER BASICS
COB 1 Part 6
Function of the Computer Parts
1.10 Q&A
COB:
COMPUTER BASICS
Function of the Computer Parts
COB 1 Part 6
End of Part 7
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COB:
COMPUTER BASICS