ANSWERS #9
What is a digital device? - correct answer 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 answer 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 answer A general-purpose computing device
small and cheap enough to be used by individuals.
How are pcs able to perform common tasks? - correct answer By installing a new
software application the computer becomes capable of performing a new function.
What 3 things do pcs contain? - correct answer 1. Individual processors
2. RAM
3. Hard disk components with expansion ports.
What additional capabilities can be upgraded on a PC? - correct answer 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 answer 1. Desktop
2. Laptop
How are pcs used in workplace? - correct answer Word processing, desktop publishing,
spreadsheets, database management systems, creative tasks (music, film editing).
How are pcs used in personal lives? - correct answer Accessing Internet, surfing the
web/email, gaming (requires expensive graphics card normally)
What is a server? - correct answer A computer that manages access to different
resources and services over a network.
How do pcs connect to a server? - correct answer Via Ethernet cable and wifi (forming a
network)
,What is the difference between servers and pcs? - correct answer Contain larger
storage capacity, higher processing power and larger amount of memory.
Give 4 examples of servers? - correct answer 1. Mail servers
2. Web servers
3. Print servers
4. File servers
How do web servers work? - correct answer -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 answer To manage access to web pages.
Why are mail servers used? - correct answer To manage access to email
How do mail servers work? - correct answer -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 answer 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 answer To share access to a printer.
How do print servers work? - correct answer By using a print server, you can send your
files to print from any computer on the network.
What is a mobile device? - correct answer 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 answer System-on-a-Chip
What is System-on-a-Chip? - correct answer 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 answer It is hard to upgrade a
mobile device as all the components are integrated on the chip.
What are 2 examples? - correct answer 1. Tablets
,2. Smartphones
What are uses for mobile device? - correct answer Accessing internet on the go, playing
games, calendars, email access.
What is a disadvantage of mobile devices? - correct answer -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 answer Computing devices that are
designed to entertain (watching tv, listening to music, playing video games)
Advantages of entertainment systems? - correct answer -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 answer 1. Digital media players
2. Mp3 players
3. Video game consoles
What is the use of digital media players? - correct answer Allows us to stream digital
media (films, tv) over a network.
What is the use of portable media players? - correct answer Portable media players
download media to device and are played off hard disk.
What is the use of MP3 players? - correct answer Used to access and listen to music on
a small portable device.
What are MP4 players? - correct answer They are the same as MP3 players but can
watch videos as well.
What is the use of video game consoles? - correct answer Allow you to play video
games. Can even use internet to play games online with people globally.
What are navigation systems? - correct answer 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 answer -Identifying traffic,
roadworks and accidents that may delay your journey. -Provides an accurate
destination time.
What is an example of navigation systems? - correct answer In car satnav
, What is the use of in car satnav? - correct answer 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 answer As navigation systems
are now being used in mobile devices for driving, walking, cycling.
What is a multifunctional device? - correct answer 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 answer Multifunctional printers,
touchscreens, force-feedback game controllers.
What is a multifunctional printer? - correct answer A device that usually combines
printing, scanning and faxing functions all into a single device.
Where are multifunctional printers used? - correct answer 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 answer They are used on tablet devices to
allow users to input without a separate keyboard or mouse.
What are force-feedback game controllers? - correct answer 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 answer rumbling in
a car game when you go off track/fighting game when you're hit.
What is a digital camera? - correct answer 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 answer 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 answer Megapixels is the number of individual pixels of
colour that are used to record an image.
The more megapixels a camera has... - correct answer The higher the quality the image
is.
How many megapixels does a modern digital camera have? - correct answer 20
megapixels