Unit 7. the Hardware
Transcript of Unit 7. the Hardware
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Unit 5. Hardware
What are we going to learn in this unit? 5.1 Which are the parts of the computer.
The tower unit
5.2 The different types of devices you canconnect to the computer.
5.3 Input devices. 5.4 Output devices. 5.5 Input-output devices. 5.6 Final activities.
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Unit 5. Hardware
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5.1 Which are the parts of thecomputer. The tower unit.
A computer is anelectronic machine that
can be programmed toaccept data (input), andprocess it into usefulinformation (output).
Data is put in secondarystorage (storage) forsafekeeping or lateruse.
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5.1 Which are the parts of thecomputer. The tower unit
The computer ortower unit is themain part of the
computer. Itcontains the maincomponents includingthe motherboard,
processor, memoryand graphics card.
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5.1 Which are the parts of thecomputer. The tower unit.
The
motherboardis the largecircuit boardinto whichyour CPU,
memoryboards, andperipheralcards are
plugged.
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5.1 Which are the parts of thecomputer. The tower unit.
The processor isinserted into theprocessor socket. It
controlls mostfunctions of thecomputer. usually havea large fan fixed ontop, to cool them down.Companies such asINTEL and AMD make
processors.
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5.1 Which are the parts of thecomputer. The tower unit.
The RAMmemory modules
are pushed intothe slots. A rangeof memory existsand it is veryimportant to fitthe correct typeand speed.
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5.1 Which are the parts of thecomputer. The tower unit.
A power supply unit (PSU) is the componentthat supplies power to a computer.
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5.1 Which are the parts of thecomputer. The tower unit.
oStorage devices:
The Hard Disk Consists of one or more rigid metal platterscoated with a metal oxide material that allows data to be
recorded magnetically on the surface of the platters.
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5.1 Which are the parts of thecomputer. The tower unit.
oStorage devices:
Compact Disc (CD), alsocalled optical discs are
available in variety offormats.CD-ROMs : compact discread-only memory. Use laser
technology for storing text,graphics, audio, video. You canonly read the contents of thedisc, but cannot erase ormodify their contents.
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5.1 Which are the parts of thecomputer. The tower unit.
oStorage devices:
CD-R, compact disc-recordable,allows you to write contents on it
only one time.CD-RW, compact disc-rewritable, allows you to writecontents on it multiple times.
DVD-ROMs : digital video disc-ROM. High capacity compact disccapable of storing large amountsof text and videos. Storagecapacity ranges from 4.7 GB to 17GB.
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5.1 Which are the parts of thecomputer. The tower unit.
Which parts of the computer can you recognize?
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5.1 Which are the parts of thecomputer. The tower unit.
Which parts of the computer can you recognize?
HARD DRIVE
MOTHERBOARD
SOUND CARD
GRAPHIC CARD
CPU COOLER
PROCESSOR
MEMORY
POWER SUPPLY
COVER PANEL CD ROM UNIT
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5.2 The different types of devices youcan connect to the computer.
All the devices you can connect to a computer arecalled peripheral
h d ff f d
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5.2 The different types of devices youcan connect to the computer.
Connections
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5.3 Input devices.
The keyboard is usedto type data into the
computer.
The mouse is used toactivate menus displayed
on the screen.
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5.3 Input devices.
The Scanner The microphone.
The Webcam The Digital Camera
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5.4 Output devices.
Computer Screenscomposed of individual picture elementscalled pixels. Each pixel can be
illuminated to form parts of acharacteror graphic shape on the screen.
Speakersconvert an electrical signal to sound
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5.4 Output devices.
Ink-jet printers Laser printers
Printersproduces a copy of documents stored in electronic form, onphysical print media such as paper or transparencies.
http://en.wikipedia.org/wiki/Computer_filehttp://en.wikipedia.org/wiki/Paperhttp://en.wikipedia.org/wiki/Transparency_%28projection%29http://en.wikipedia.org/wiki/Transparency_%28projection%29http://en.wikipedia.org/wiki/Paperhttp://en.wikipedia.org/wiki/Computer_file -
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5.5 Input-Output devices.
Modem:Allows to connectone host to
internet
RouterA router allows
connectivity to oneor morecomputers, helpingcreate a network.
http://www.misco.co.uk/applications/category/category_tlc.asp?CatId=1016http://www.misco.co.uk/applications/category/category_tlc.asp?CatId=1016 -
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5.6 Final activities.1. Do you know the name of these devices?
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5.6 Final activities.
Do you know the name of these devices?
FAX
MODEM
MICROPHONE
KEYBOARD
LAPTOP
PRINTERMONITOR
SPEAKER
CANNER
MOUSE
ROJECTOR
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5.6 Final activities.
Complete the following paragraph using the words from thebottom of the page.
A__________ is an electronic device that _________and
processes data. It is made up of __________and software.Hardware are the things you can__________and pick up,for example the_________, mouse and__________ .TheSoftware are the_________ an the instructions which tell
the computer what to do and how to____________ .
Keyboard Hardware Touch Operate
Stores Monitor Programs Computer