Unit 7. the Hardware

8/2/2019 Unit 7. the Hardware

1/23

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.


2/23

Unit 5. Hardware


3/23

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.


4/23

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.


5/23


The

motherboardis the largecircuit boardinto whichyour CPU,

memoryboards, andperipheralcards are

plugged.


6/23


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.


7/23


The RAMmemory modules

are pushed intothe slots. A rangeof memory existsand it is veryimportant to fitthe correct typeand speed.


8/23


A power supply unit (PSU) is the componentthat supplies power to a computer.


9/23


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.


10/23


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.


11/23


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.


12/23


Which parts of the computer can you recognize?


13/23


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


14/23

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


15/23

5.2 The different types of devices youcan connect to the computer.

Connections


16/23

5.3 Input devices.

The keyboard is usedto type data into the

computer.

The mouse is used toactivate menus displayed

on the screen.


17/23

5.3 Input devices.

The Scanner The microphone.

The Webcam The Digital Camera


18/23

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


19/23

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


20/23

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


21/23

5.6 Final activities.1. Do you know the name of these devices?


22/23

5.6 Final activities.

Do you know the name of these devices?

FAX

MODEM

MICROPHONE

KEYBOARD

LAPTOP

PRINTERMONITOR

SPEAKER

CANNER

MOUSE

ROJECTOR


23/23

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

Documents

Unit 7. the Hardware