1.6 inside the system unit [hardware]
DESCRIPTION
1.6 Inside the system unit [Hardware]. Class: ________________ Name: ________________. 1.6 Computer System. System unit. 4. 3. 5. 6. 2. 7. 1. 8. 10. 9. 1.6 Computer System. 1.6 Inside the system unit. 1.6 Inside the system unit. 1. 5. 2. 6. 7. 3. 8. 4. 9. - PowerPoint PPT PresentationTRANSCRIPT
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.6 Inside the system unit [Hardware]
Class: ________________
Name: ________________
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
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System unit4.
1.6 Computer System
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.6 Computer System
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.6 Inside the system unit
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
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1.6 Inside the system unit
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
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
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3.4.
Process data1.
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
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
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• The casing of the system unitsystem unit (Cont’d)
• Comes in a variety of design
1.7 Function of Parts of a Computer System(Hardware – system unit)
system unitsystem unit
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• The casing of the system unit (Cont’d)
• Comes in a variety of design
1.7 Function of Parts of a Computer System(Hardware – system unit)
system unitsystem unit
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• All processing takes place in the system unit.
• The system unit contains
• the motherboard
1.7 Function of Parts of a Computer System(Hardware – motherboard)
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
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.
1.7 Function of Parts of a Computer System(Hardware - motherboard)
the motherboard
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System
The BRAIN
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• the processor, Central Processing Unit (CPU), also called processor
– It is the brainbrain 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
1.7 Function of Parts of a Computer System(Hardware - CPU)
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System
The Memory / Storage Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
•For a computer to work, it needs to remember
– Instructions for the computer’s hardware (programs)
– User’s information/ data
1.7 Function of Parts of a Computer System(Hardware – Memory/ Storage)
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
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
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System(Hardware – Memory/ Storage)
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
– Primary memory• Stores data currently or frequently
used
1.7 Function of Parts of a Computer System(Hardware – Memory/ Storage)
Primary Memory
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System(Hardware – Memory/ Storage)
Primary Memory
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
– Secondary storage media• Stores data and programs permanently• Able to store large amount of data
1.7 Function of Parts of a Computer System(Hardware – Memory/ Storage)
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System(Hardware – Memory/ Storage)
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System
Input Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System – Input Devices
• All these are input devices
• Scanner• Scans information
on hard copy into the computer
• Microphone• Captures sound into
the computer
Input DevicesInput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• The keyboard and mouse• Important tools because they are
used to control the computer• Designs have improved greatly
1.7 Function of Parts of a Computer System – Input Devices
Input DevicesInput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• 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
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input DevicesInput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• Used to input data to the computer by clicking
• It is a pointing device that directs a pointer on the monitor.
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input DevicesInput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
•Input sound/ audio into the computer system
microphone
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input DevicesInput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
•Reads or scans information into the computer. •The information can be text or graphics. •It is usually to scan photographs
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input DevicesInput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• The unit that plugs into a game console to control the game play.
• Commonly used in computer games.
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input DevicesInput Devices
Game console controller.
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• Barcode reader:- reads information on a barcode. Commonly used in libraries and supermarkets
1.7 Function of Parts of a Computer System 1.7 Function of Parts of a Computer System – –
Input DevicesInput Devices
Barcode reader
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
•Reads marks made on specially printed forms and inputs into computer
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input DevicesInput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input DevicesInput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System(Output Devices)
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• 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
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• The display unit• Displays information onto a screen• Main way computer communicates with users
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• The display unit• Many types invented over the years
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
• The display unit• Many types invented over the years
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• Printers: Sends information produced by the computer system in a printed form.
• Prints text or illustrations onto paper • There are different types of printers.
• Main types: • Thermal printer• Print created by pushing
heated pins against heat sensitive paper
• Cheap and fast• Used widely in
supermarket checkouts and ATM
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• 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
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• 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
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• Printers (Cont’d)
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Output DevicesOutput Devices
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System(Other Devices)
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System – 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 ScreenGPS
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
• 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
1.7 Function of Parts of a Computer System – 1.7 Function of Parts of a Computer System – Input Devices – Data logger
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.7 Function of Parts of a Computer System – 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
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
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
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.9 Network
• Wired and wireless computer parts• Wireless computer parts
• No physical connection• Example: wireless
router, cordless mouse
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1. Keyboard, mouse, flat-bed scanner, microphone 2. Monitor, speaker, laser printer, inkjet printer (Other
answers: projector)3. CD-ROM drive, hard disk (Other answers: thumb
drive)
1.10 Q&A
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.10 Q&A
1. Inkjet2. Laser3. Dot matrix4. Laser
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.2.3.4.5.
6.78.9.
1.10 Q&A
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
1.10 Q&A
Function of the Computer PartsFunction of the Computer Parts
C O B : C O M P U T E R B A S I C S
COB 1 Part 6
End of Part 7
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