What device allows you to print email cards announcements and other materials?

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of computers 47
e-Tec Brasil
Aula 5 – Parts of computers II
Objetivos 
Conhecer o nome das partes que compõem o computador em 
inglês. 
Empregar os verbos no passado de modo a exercitar exemplos prá-
ticos do cotidiano do técnico em informática.
Elaborar frases simples e coerentes em inglês, utilizando o conte-
údo estudado, com exemplos práticos do cotidiano do técnico de 
informática. 
5.1 System unit
The system unit is the core of a computer system. Usually it’s a rectangular 
box placed on or underneath your desk. Inside this box are many electronic 
components that process information. The most important of these 
components is the central processing unit (CPU), or microprocessor, which 
acts as the “brain” of your computer. Another component is random access 
memory (RAM), which temporarily stores information that the CPU uses 
while the computer is on. The information stored in RAM is erased when the 
computer is turned off.
Almost every other part of your computer connects to the system unit using 
cables. The cables plug into specific ports (openings), typically on the back 
of the system unit. Hardware that is not part of the system unit is sometimes 
called a peripheral device or device.
e-Tec BrasilAula 5 – Parts of computers II 49
Figura 5.1: System unit
Fonte: http://groovix.com/images/front_open1.jpg
Your computer has one or more disk drives – devices that store information 
on a metal or plastic disk. The disk preserves the information even when your 
computer is turned off.
5.1.1 CD and DVD drives
Nearly all computers today come equipped with a CD or DVD drive, usually 
located on the front of the system unit. CD drives use lasers to read (retrieve) 
data from a CD, and many CD drives can also write (record) data onto CDs. 
If you have a recordable disk drive, you can store copies of your files on blank 
CDs. You can also use a CD drive to play music CDs on your computer.
DVD drives can do everything that CD drives can, plus read DVDs. If you have 
a DVD drive, you can watch movies on your computer. Many DVD drives can 
record data onto blank DVDs.
5.1.2 Mouse
A mouse is a small device used to point to and select items on your computer 
screen. Although mice come in many shapes, the typical mouse does look a 
bit like an actual mouse. It’s small, oblong, and connected to the system unit 
by a long wire that resembles a tail. Some newer mice are wireless.
Figura 5.2: Mouse
Fonte: http://www.sxc.hu 
Inglês para Informáticae-Tec Brasil 50
A mouse usually has two buttons: a primary button (usually the left button) 
and a secondary button. Many mice also have a wheel between the two 
buttons, which allows you to scroll smoothly through screens of information.
When you move the mouse with your hand, a pointer on your screen moves 
in the same direction (the pointer’s appearance might change depending 
on where it’s positioned on your screen). When you want to select an item, 
you point to the item and then click (press and release) the primary button. 
Pointing and clicking with your mouse is the main way to interact with your 
computer. 
5.1.3 Keyboard
Figura 5.3: Teclado
Fonte: http://www.advantage.co.nz/images/56291.jpg
A keyboard is used mainly for typing text into your computer. Like the key-
board on a typewriter, it has keys for letters and numbers, but it also has 
special keys:
a) the function keys, found on the top row, perform different functions 
depending on where they are used;
b) the numeric keypad, located on the right side of most keyboards, allows 
you to enter numbers quickly;
c) the navigation keys, such as the arrow keys, allow you to move your po-
sition within a document or webpage.
You can also use your keyboard to perform many of the same tasks you can 
perform with a mouse. 
e-Tec BrasilAula 5 – Parts of computers II 51
Figura 5.4: Teclado flexível
Fonte: http://heritageproducts.com/home/images/prestige-016.jpg
5.1.4 Monitor
A monitor displays information in visual form, using text and graphics. The 
portion of the monitor that displays the information is called the screen. Like 
a television screen, a computer screen can show still or moving pictures.
There are two basic types of monitors: CRT (cathode ray tube) monitors and 
LCD (liquid crystal display) monitors. Both types produce sharp images, but 
LCD monitors have the advantage of being much thinner and lighter. CRT 
monitors, however, are generally more affordable.
Figura 5.5: Monitor CRT
Fonte: http://www.positivo.pl/upload/wysiwyg/produkty/monitory_crt/lg/LG_F700P_FLATRON_02.jpg
Inglês para Informáticae-Tec Brasil 52
Figura 5.6: Monitor LCD
Fonte: http://www.sxc.hu 
5.1.5 Printer
A printer transfers data from a computer onto paper. You don’t need a 
printer to use your computer, but having one allows you to print email, 
cards, invitations, announcements, and other materials. Many people also 
like being able to print their own photos at home.
The two main types of printers are inkjet printers and laser printers. Inkjet 
printers are the most popular printers for the home. They can print in black 
and white or in full color and can produce high-quality photographs when 
used with special paper. Laser printers are faster and generally better able to 
handle heavy use.
Figura 5.7: Impressora
Fonte: http://pcwizkid.co.uk/images/speakers.jpg
e-Tec BrasilAula 5 – Parts of computers II 53
5.1.6 Speakers
Speakers are used to play sound. They may be built into the system unit or 
connected with cables. Speakers allow you to listen to music and hear sound 
effects from your computer.
Figura 5.8: Caixinhas de som
Fonte: http://ufile.jrj.com.cn/oblog/articleimage/2008/03/28/SBV5121.jpg
5.1.7 Modem
To connect your computer to the internet, you need a modem. A modem is 
a device that sends and receives computer information over a telephone line 
or high-speed cable. Modems are sometimes built into the system unit, but 
higher-speed modems are usually separate components.
Figura 5.9: Cable modem
Fonte: Acervo da autora 
Inglês para Informáticae-Tec Brasil 54
Learning activities
Mark the correct concept of the following words:
a) Memory 
( ) It is what you have to pay when you buy something.
( ) Enables a computer to store, at least temporarily, data and program.
( ) When you use the phone to call someone. 
b) Mass storage device
( ) Something that tell who a person is.
( ) An area in a business office.
( ) Allows a computer to permanently retain large amounts of data. Com-
mon mass storage devices include disk drives and tape drives.
c) Input device
( ) Usually keyboard and mouse, the input device is the conduit through 
which data and instructions enter a computer.
( ) The department that sells a business’s products.
( ) A person from another country. 
d) Output device
( ) A display screen, printer, or other device that lets you see what the com-
puter has accomplished.
( ) To look at many things and then take one or two, as the person wishes.
( ) To write your name.
e) Central Processing Unit (CPU)
( ) To say that you certainly will or will not do something.
( ) A person who is not smart.
( ) The heart of the computer, this is the component that actually executes 
instructions. 
e-Tec BrasilAula 5 – Parts of computers II 55
5.2 Simple past tense – regular verbs
With most verbs, the simple past is created simply by adding “ED”. 
That form belongs for all to the people, not varying in the 3rd person.
Simple past is used to indicate an accomplished action and totally finished 
in the past, corresponding in Portuguese, the perfect preterite as imperfect 
preterite.