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GCSE ICT Digital World > Personal Digital Devices > Flashcards

Personal Digital Devices Flashcards

(53 cards)

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1
Q

Ways of communicating with a digital device? (remember atleast 3, 7 listed)

A 
Text messages
Social networking sites
Instant messaging
Media messages
Voice calls
Video calls
Emails
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2
Q

Uses of a digital device for travel? (3 uses listed)

A

Can find the route with satnav and GPS
Can track location of cars and vans
Can geotag images

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3
Q

Factors to consider when choosing a device? (Try to remember atleast 5 different factors)

A 
User interface
Connectivity
Storage capacity/Memory
Speed of internet connection and processor 
Cost
Battery Life
Compatibility with other devices
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4
Q

What is a processor?

A

A component which controls all the functions of the device.

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5
Q

What is internal memory?

A

The place where program instructions and data are stored while the microprocessor is working.

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6
Q

Features of flash memory? (4 listed)

A

Peripheral device
Does not lose data when turned off
Has no moving parts (reduces risk of being damaged)
Removable and can be used to transfer data between devices

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7
Q

Types of Flash Memory (5 listed)

A 
SD card
Micro SD card
SDXC (extended capacity SD card)
SDHC (high capacity SD card)
USB/Memory Stick
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8
Q

Input Devices (10 listed)

A 
Keyboard
Mouse
Webcam
Microphone
Touch Screen
Game controller
Graphics Tablet
Scanner
Touch sensitive jog dial
Joystick
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9
Q

Output Devices (6 listed)

A 
Speakers
Docking station
Headphones
Printer
Headset
Screen
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10
Q

Ways of connecting devices (4 listed)

A

Data cable connection
Bluetooth
WiFi
Cloud synchronisation

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11
Q

Features of Bluetooth (3 listed)

A

Wireless
Communicate over SHORT DISTANCES using radio waves
Can connect to enabled peripherals such as speakers or printers

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12
Q

Features of WiFi (4 listed)

A

Wireless
Communicate over LONGER DISTANCES
Devices can connect with a computer network and the Internet
Can connect to enabled peripherals such as printers, speakers, scanners etc.

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13
Q

Features of cloud synchronisation (3 listed)

A

Storage of all data files (photos, music etc) on a remote server
Can access files from all digital devices
File downloaded on one device automatically downloads to all devices

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14
Q

What is synchronisation?

A

When two devices are connected and they can automatically exchange data

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15
Q

Core Functions of Mobile phones (2 listed)

A

Voice calls on the move

Can use SMS

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16
Q

Features of Multifunctional mobile phones (6 listed)

A

Internet browsing and streaming
GPS- position on map and navigation device
Entertainment- music, videos, games
Productivity- learning, financial management, travel apps= Boost productivity and save time!
Data storage- store photos, music, videos and removable storage (micro SD card)= easy transfer!
Camera- takes images, videos and can be used to make video calls

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17
Q

Ways of keeping phone and data secure

A

Hide phone
Set a pin
Lock the sim card
Record the unique IMEI number which mobile service providers can use to block the phone
Encrypt data- codes data and need to use a key to unlock it
Restrict Bluetooth use - reduces chance of “bluejacking”

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18
Q

Features of desk top computers

A

Require peripherals such as monitor, mouse and speakers
Have hard disk drives and optical drives as storage devices
Powerful processors
Good connectivity (USB, FireWire, HDMI)
Can have Bluetooth and wifi cards for wireless communication
Easy to upgrade and enhance by adding extra functions

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19
Q

Features of Laptop computers

A

Monitor, pointing device and webcam built in
Have hard disk drives and optical drives and slots for SD cards
Good connectivity (USB, FireWire, HDMI)
Have Bluetooth and WiFi built in
Less easy to dismantle and upgrade
Battery powered or use electricity supply
-NOTEBOOKS= MORE COMPACT VERSION

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20
Q

Features of Netbook Computers

A

Strong and robust
Small and lightweight
Boot up quickly- solid state SD cards as storage devices
Built in WiFi
Usually do not have hard disks or optical drives
Designed for internet use and cloud computing

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21
Q

Features of Tablet computers

A

Very light and portable
Battery powered
Touch screen interface
Virtual, on screen keyboard
Bluetooth, Wifi and 3G enabled for wireless comms
Camera to take still and moving images
Designed for playing media, Internet use and reading ebooks
Can download and run apps as on mobile phones

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22
Q

Features of a personal computer to consider

Study These Flashcards
A 
Processor speed
RAM
Storage capacity
Number of USB ports
Battery life
Wifi
Sound/Graphics card- see/hear graphics, videos, music, games
23
Q

What is ergonomics?

Study These Flashcards
A

The science of designing equipment so that it is comfortable and user-friendly
Can help prevent RSI and other health problems

24
Q

Health risks of computer use- cause + solution

Study These Flashcards
A 
Eye Strain
(looking at screen too long, sunlight/artificial light shining on screen)
{take regular breaks, adjust screen, use antiglare}

RSI
(Performing repeated actions)
{Use wrist rests to support hands, take breaks from repeating actions}

Neck and back problems
(sitting in the wrong position, sitting in same pos for long time)
{Change height of chair/screen, adjust lumbar support, move computer closer/further}

Pain in knees and legs
(Sitting in wrong position, sitting in same pos for long time)
{Adjust chair so feet are flat on the ground or use footrest, regular breaks to stretch legs}

25
Digital zoom
Does not actually zoom Crops and enlarges part of image Can affect image quality
26
Optical zoom
Moves lens away from sensor and closer to object Brings light from subject closer Does not affect image quality as much
27
GPS receivers in cameras
Geographical coordinates are stored as metadata- small text file stored with each image- details
28
Wifi in camera
Allows users to email images or upload to online albums and social networking sites without needing to download images to computer first
29
Features of personal camcorders
``` Small, High specs Cheap Can record HD videos Some have wifi- can upload videos directly to internet sites ```
30
Features of media players
``` Small and light Solid state memory- movement does not affect playback Long battery life Can store a lot of media Can set playlists Can lock Simple interfaces ie jog wheel ```
31
Media file formats (audio, still images, videos)
Audio: MP3, WMA Still images: JPEG, GIF, PNG Video: MPEG-4, WMV
32
Safety features of personal media players
Biometric authentication Encrypts data to prevent others accessing Backup feature- data back up to a computer Hides Bluetooth/wireless sharing- stop users accessing device Remote management- allows deactivation remotely if stolen Hard reset feature- Users can delete all data for selling device Antivirus software Locks automatically if not used for certain time period- prevents accidental/unauthorised use
33
What is Digital Rights Management?
Software which prevents you making copies of audio and video files downloaded onto personal media player May prevent transfer to other digital devices owned !!PROTECTS COPYRIGHT HOLDER BY PREVENTING ILLEGAL COPYING!!
34
Advantages of Streaming Videos
Saves time- do not have to wait for download- continuous stream of data, played by software as soon as it arrives on media player Uses less storage space
35
Disadvantages of Streaming Videos
Cannot keep local copy for viewing offline Limited availability for some streamed video User experience depends on connection quality (bandwidth needs to be large)
36
Features of games consoles
High resolution output for HD games and videos Connectivity- USB, Bluetooth, Wifi, Ethernet Can connect to internet to browse, shop, social network, VoiP etc. CD, DVD, Blue-ray optical drives Capable of multi-player online gaming Webcam, speaker, microphone- Video chats with other console users online Motion sensors- controller with button for game control Hands free- uses laser and infrared cam to build a pic of your room, identify person moving etc. Wireless controllers Wireless headsets
37
Health risks of game consoles
Overuse injuries- RSI (Pressing buttons) {sensible time limits, breaks to stretch and flex, don't use same controller all the time} Obesity (increased use of sitting down console games leads to reduced amount of exercise) {sensible time limits, physical activity when not playing} Muscle and Joint Problems (hours in same position impacts posture and spine) {regular breaks to stretch, adjust furniture to suit height, use ergonomic chair if possible} ``` Eye Strain (eyes become fatigued when focused at same distance point for long periods, can lead to blurry vision and headaches) {Adjust screen for contrast and brightness, move furniture to prevent light shining on screen, gaze breaks ie look at objects in the distance} ```
38
Signs of overuse
Spend all free time gaming Give up other interests and hobbies Not keeping up with hmwk and failing grades Would rather play games than spend time with family and friends
39
Effect of gaming on behaviour
Violent video games can lead to decreased empathy and increased aggression Playing shooting games for 1 0 hours in a week results in less brain activity in areas of brain involving thinking and emotional control
40
Features of Digital Television
More channels than analogue TV High quality pictures and sound Can access digital radio stations Electronic Programme Guide More accessible- subtitles, audio and sign language descriptions Interactive features- extra coverage, voting, shopping Greater control- saves programmes and can pause live TV
41
What is a home cinema or theatre system composed of?
DVD/Blue ray player, amplifier and six speakers to provide high fidelity surround sound.
42
What is convergence?
When devices take on functions normally found in other devices
43
What is Digital Living Network Alliance?
If 2 devices are DLNA certified, they are compatible without needing to plug anything in or transfer files
44
How are Satnavs useful to drivers?
Can check speed and warning about speed cameras Live traffic reports and help avoid congestion Can help find scenic routes or conveniences ie service stations and restaurants
45
Health and safety risks of Satnavs?
Driver may be diverted trying to adjust settings/route and cause an accident Devices may cause blind spot Could lead driver down hard to navigate roads or to incorrect destinations
46
What is Geocaching?
Outdoor, high tech treasure hunt | Try to locate hidden containers called geocaches using GPS enabled devices and share experiences online
47
What do GPS services on mobile have to offer? Advantages of Smartphone over traditional Satnav
Free downloadable maps Route planning apps More likely to have phone on you than satnav Can buy applications from major satnav manufacturers for phone Small, light and easy to carry around
48
Disadvantages of smartphone over traditional Satnav
Might have to pay for expensive app May be subject to roaming charges if used abroad GPS can run down battery very quickly Does not always update quickly enough, may cause you to miss instructions Some satnavs have bigger screens and 3D displays
49
Accessibility of Satnavs
Extra info for people with disabilities such as disabled parking areas, toilets, facilities etc. in public Satnavs for blind people speak their location with the press of a button
50
Effects of computers on organisations
Effects: number of employees needed skills needed by employees training and re-training requirements
51
Effects of portable digital devices on organisations
Employees issued with one Make remote access possible through use of wireless and 3G networks and by storing data and files in a cloud Allows for greater collaboration between workers at different sites But it also puts organisations at greater risk of hackers stealing or corrupting data
52
The use of online presence by organisations
Website- showcase goods and services, sell online Blog- tell customers about developments in a more personal way Social Networking Websites- monitor comments and engage in discussions Viral marketing- advertise services through video uploads Profiling- tracking info about customer transactions gathered using cookies
53
Uses of technology in education
Internet allows better online research Laptops, netbooks and smartphones allow access to online learning materials Apps for smartphones make learning more enjoyable VLEs allow access to learning resources and students can hand hmwk in any time Ebook readers give better access to lots of texts Online registration and admin systems for schools improve efficiency Specialist software improves learning in certain subjects ie. languages Interactive whiteboards, digital cameras and GPS enabled devices enhance learning experience

GCSE ICT Digital World (7 decks)

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