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BTEC IT Level 3 - Unit 1Questions And Correct Answers
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BTEC IT Level 3 - Unit 1Questions And Correct Answers
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BTEC IT Level 3 - Unit 1Questions AndCorrect Answers
What is a digital device? CORRECT ANSWERS Piece of physical equipment that uses
digital data, such as by sending, receiving, storing or processing it.
What 9 types of digital devices are there? CORRECT ANSWERS 1. Personal
Computers
2. Mobile Devices
3. Servers
4. Entertainment Systems
5. Navigation Systems
6. Multifunctional Devices
7. Digital Cameras
8. Data capture and Collection Systems
9. Communication devices and systems
What is a personal computer? CORRECT ANSWERS A general-purpose computing
device small and cheap enough to be used by individuals.
How are PCs able to perform common tasks? CORRECT ANSWERS By installing a
new software application the computer becomes capable of performing a new function.
What 3 things do PCs contain? CORRECT ANSWERS 1. Individual processors
2. RAM
3. hard disk components with expansion ports.
What additional capabilities can be upgraded on a PC? CORRECT ANSWERS
Replacing hard disk, more storage or adding a graphics card to an expansion port,
improves graphics processing power.
Give 2 examples of a PC CORRECT ANSWERS 1. Desktop
2. laptop
How are PCs used in workplace? CORRECT ANSWERS Word processing, desktop
publishing, spreadsheets, database management systems, creative tasks (music, film
editing).
How are PCs used in personal lives? CORRECT ANSWERS Accessing Internet, surfing
the web/email, gaming (requires expensive graphics card normally)
What is a server? CORRECT ANSWERS A computer that manages access to different
resources and services over a network.
,How do PCs connect to a server? CORRECT ANSWERS Via Ethernet cable and WiFi
(forming a network)
What is the difference between servers and PCs? CORRECT ANSWERS Contain
larger storage capacity, higher processing power and larger amount of memory.
Give 4 examples of servers? CORRECT ANSWERS 1. Mail servers
2. web servers
3. print servers
4. file servers
How do web servers work? CORRECT ANSWERS -Web server stores the web page
and associated files.
-Client computer makes request for a web page to server (by entering URL).
-Web server locates correct files and sends back to client.
Why are web servers used? CORRECT ANSWERS To manage access to web pages.
Why are mail servers used? CORRECT ANSWERS To manage access to email
How do mail servers work? CORRECT ANSWERS -When you write an email/press
send on PC, goes to outgoing mail server.
-This mail server then sends across a network to recipient's mail server and stores in
their mailbox.
-When recipient logs into their email client the mail server will forward email to their
computer.
Why are file servers used? CORRECT ANSWERS To store your files such as word
processors and spreadsheets so they are accessible from any computer on the
network.
Why are print servers used? CORRECT ANSWERS To share access to a printer.
How do print servers work? CORRECT ANSWERS By using a print server, you can
send your files to print from any computer on the network.
What is a mobile device? CORRECT ANSWERS A computing device that is designed
to be portable as it is compact, light-weight and capable of running for extended periods
on battery power.
What key feature helps make mobile devices more compact and reduce power
consumption? CORRECT ANSWERS System-on-a-Chip
What is System-on-a-Chip? CORRECT ANSWERS The core components of the
computer are integrated onto a single chip. (CPU, GPU and RAM)
,What is a disadvantage of System-on-a-Chip? CORRECT ANSWERS It is hard to
upgrade a mobile device as all the components are integrated on the chip.
What are 2 examples? CORRECT ANSWERS 1. Tablets
2. smartphones
What are uses for mobile device? CORRECT ANSWERS Accessing internet on the go,
playing games, calendars, email access.
What is a disadvantage of mobile devices? CORRECT ANSWERS -They all use
touchscreen so are bad for word processing tasks.
-Also have limited processing capabilities so are bad for graphic games/film editing.
What is an entertainment system? CORRECT ANSWERS Computing devices that are
designed to entertain (watching tv, listening to music, playing video games)
Advantages of entertainment systems? CORRECT ANSWERS -Good hard disk storage
for storing tv/films, music and games.
-Built in internet connectivity capabilities (WiFi).
-Access to streaming and online gaming services.
3 examples of entertainment systems CORRECT ANSWERS 1. Digital media players
2. mp3 players
3. video game consoles
What is the use of digital media players? CORRECT ANSWERS Allows us to stream
digital media (films, tv) over a network.
What is the use of portable media players? CORRECT ANSWERS Portable media
players download media to device and are played off hard disk.
What is the use of MP3 players? CORRECT ANSWERS Used to access and listen to
music on a small portable device.
What are MP4 players? CORRECT ANSWERS They are the same as MP3 players but
can watch videos as well.
What is the use of video game consoles? CORRECT ANSWERS Allow you to play
video games. Can even use internet to play games online with people globally.
What are navigation systems? CORRECT ANSWERS A digital device that uses GPS
(Global Positioning System) to provide a real-time map of our current location, allowing
us to plan a route to be directed to a chosen destination.
, What features do some Navigation systems have? CORRECT ANSWERS -Identifying
traffic, roadworks and accidents that may delay your journey. -Provides an accurate
destination time.
What is an example of navigation systems? CORRECT ANSWERS In car satnav
What is the use of in car satnav? CORRECT ANSWERS Used instead of traditional
maps to help direct you along the fastest route. Can be integrated directly into car's
dashboard but is often standalone. (e.g. TomTom)
Why has standalone satnavs been replaced? CORRECT ANSWERS As navigation
systems are now being used in mobile devices for driving, walking, cycling.
What is a multifunctional device? CORRECT ANSWERS A device that is capable of
performing more than one specific function. (Also known as MFD and multifunctional
peripherals)
What are examples of a multifunctional device? CORRECT ANSWERS Multifunctional
printers, touchscreens, force-feedback game controllers.
What is a multifunctional printer? CORRECT ANSWERS A device that usually
combines printing, scanning and faxing functions all into a single device.
Where are multifunctional printers used? CORRECT ANSWERS They are popular for
use in home offices for people who work from home and do not have the space or
money for three separate devices.
What are touch screens used for? CORRECT ANSWERS They are used on tablet
devices to allow users to input without a separate keyboard or mouse.
What are force-feedback game controllers? CORRECT ANSWERS They are used on
games consoles to allow you to control the game and receive vibration output.
Give an example of a vibration output on a games console? CORRECT ANSWERS
rumbling in a car game when you go off track/fighting game when you're hit.
What is a digital camera? CORRECT ANSWERS A device that is capable of taking
photo and video and recording it as digital data.
How does a digital camera store photos/videos as digital data? CORRECT ANSWERS
By using a grid of photosensors that convert light into digital pixels that our computer
can store, usually on a memory card.
What is a megapixel? CORRECT ANSWERS Megapixels is the number of individual
pixels of colour that are used to record an image.
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