1. Personal Digital Devices
GCSE ICT Unit 1 Theory

2. What digital devices can you think of?
Personal computers
Satellite Navigation
Mobile Phones
What digital devices can you think of?
PERSONAL DIGITAL DEVICES
Games consoles
Cameras/ camcorders
Media players

3. Ways of communication:
Text messages (SMS)
Social networking sites
Instant messaging
Media messages (MMS)
Voice calls
Video calls
PERSONAL DIGITAL DEVICES

4. Choosing a digital device:
Cost
Battery life
Factors to consider
PERSONAL DIGITAL DEVICES
Speed
connectivity
Purpose
convenience
User interface
Compatibility
Security

5. Size of storage 1 Byte 1 Kilobyte 1 Megabyte 1 Gigabyte 1 Terabyte
PERSONAL DIGITAL DEVICES
1 Kilobyte
1 Megabyte
1 Gigabyte
1 Terabyte

6. Exam Questions so far:
Mitch could use a DVD or CD drive to back up his video files.
State one reason why DVD is more suitable
Larger storage capacity
b) Identify one local storage, other than a DVD or CD drive that could be used for backups
Memory stick, USB flash drive
PERSONAL DIGITAL DEVICES

7. Exam Questions so far:
Some digital devices store data on internal hard disk drives & others use SD cards.
Give two advantages of using a hard disk drive rather than an SD card
Larger storage capacity
Faster data access
b) Give two advantages of using an SD card rather than a hard disk drive
Smaller and lighter
Easily removable & can be used to transfer data between devices
PERSONAL DIGITAL DEVICES

8. Input and Output devices
PERSONAL DIGITAL DEVICES
Input Devices
Output Devices
Used to enter data into a computer
Allows the user to see or hear the information once processed.

9. Input, Output or Storage?
Look at the following devices, are they Input, Output or Storage devices?
PERSONAL DIGITAL DEVICES
Monitor
Microphone
Printer
keyboard
Scanner
Headphones

10. Input, Output or Storage?
Look at the following devices, are they Input, Output or Storage devices?
PERSONAL DIGITAL DEVICES
USB Memory Stick
Speakers
SD Card
Mouse
Controller
DVD

11. Question Time
List two peripheral devices that could be connected to a personal media player
Headphones, speakers, microphone
2) Jo has a new games console. State two input devices that she might use with it
Webcam, microphone, controller, steering wheel, balance board
PERSONAL DIGITAL DEVICES

12. Connectivity Data Cable connection (USB) Most common method
Most mobile phones & media players can connect by USB
Bluetooth
Allow devices to connect wirelessly over short distances
PERSONAL DIGITAL DEVICES

13. Connectivity
Wi-Fi
Allow devices to connect wirelessly over longer distances
Most modern devices are now Wi-Fi enabled
Cloud
Allows users to store all their data on a remote server that can be accessed anywhere with internet
PERSONAL DIGITAL DEVICES

14. Security – How can you keep the data safe?
Mobile Phones
Restrict Bluetooth usage
Hide the phone
PERSONAL DIGITAL DEVICES
Security – How can you keep the data safe?
Lock the SIM card
Set a password or PIN

15. Personal Computers PERSONAL DIGITAL DEVICES
Who Am I? Look at the definitions, can you decide which personal computer the description is talking about?
PERSONAL DIGITAL DEVICES
I am very strong & robust
I boot up very quickly
I have no hard disk
I have SD cards as storage
I need input & output peripherals
Have hard disk drives & optical drives
I have a powerful processor
I am easy to upgrade & enhance
Desktop computers
Netbook computers
Desktop computers
Laptop computers
Netbook computers
Tablet computers

16. Personal Computers PERSONAL DIGITAL DEVICES
Who Am I? Look at the definitions, can you decide which personal computer the description is talking about?
PERSONAL DIGITAL DEVICES
I have a monitor, pointing device & webcam built in
I have bluetooth & WI-FI built in
I have hard disk drives & optical drives
I am very light & portable
I am battery powered
I have a touch screen interface
I have WI-Fi, Bluetooth & 3G
Tablet computers
Laptop computers
Desktop computers
Laptop computers
Netbook computers
Tablet computers

17. Health & Safety Health Risks Solutions PERSONAL DIGITAL DEVICES
PERSONAL DIGITAL DEVICES
Health Risks
Solutions
Eye strain
RSI
Neck and back problems
Pain in knees and legs
- Take regular breaks away from screen
Adjust the screen
Use an anti glare screen
Use wrist rests
Take breaks
Change height of chair/screen
Move computer closer/further away
Make sure feet are flat on ground or use a foot rest
Take regular breaks

18. Question Time
Some people find it difficult to use a mobile phone. State two features that can make a phone easier to use.
Louder ring tone, clearer display, larger keys, touch keypad
2) Harry is concerned about data security. State two ways he can protect the information stored on his phone.
Hide the phone in public, set a PIN/password, Lock SIM card, restrict bluetooth usage
PERSONAL DIGITAL DEVICES

19. Cameras & Camcorders Resolution
The maximum number of pixels that can be recorded in the images
The more pixels, the more detailed the image
Zoom
Digital Zoom – just enlarges part of the image which can become blurred
Optical zoom – moves the lens closer which allows a clearer image
PERSONAL DIGITAL DEVICES

20. Cameras & Camcorders
Many cameras now have a GPS receiver allowing the following:
GPS Tagging
Stores the exact location of where a video/image was recorded
Metadata
The small text file stored with each image giving its details
PERSONAL DIGITAL DEVICES

21. Media Players PERSONAL DIGITAL DEVICES Connectivity:
HDMI Port – allows users to view HD movies on TV through HDMI cable
Connectivity:
PERSONAL DIGITAL DEVICES
Wireless transfer:
WI-FI
Bluetooth
Infrared
USB Port – allows transfer of files with USB cable

22. Media Players PERSONAL DIGITAL DEVICES Key Features: Long battery life
Small, light and easy to carry
Hold a lot of media – songs, podcasts, video
Solid State Memory - the songs don’t skip when jolted
Simple interface

23. Downloading & Streaming
Streaming – the file is sent in compressed form over the internet and is viewed in real time.
PERSONAL DIGITAL DEVICES
Advantages of Streaming:
Saves time – doesn’t have to wait for download
Uses less storage space
Disadvantages of Streaming:
Cannot keep a copy for viewing offline
Limited availability
Dependent upon connection quality

24. Games Consoles PERSONAL DIGITAL DEVICES Key Features:
CD, DVD and Blu-ray
High resolution output
PERSONAL DIGITAL DEVICES
Connectivity – USB, Bluetooth, Wi-Fi, ethernet
Capable of multi-player online gaming

25. Games Consoles PERSONAL DIGITAL DEVICES Health Risks:
Muscle & joint problems
Overuse injuries - RSI
PERSONAL DIGITAL DEVICES
Obesity
Eye strain

26. Satellite Navigation PERSONAL DIGITAL DEVICES Uses:
Live traffic reports
Route planning
PERSONAL DIGITAL DEVICES
Check speed & warn about speed cameras
Locate nearest service stations
Function of GPS: gives you an accurate location of where you are by receiving signals from a network of satellites

27. Satellite Navigation
Using a smartphone app instead of dedicated sat nav:
PERSONAL DIGITAL DEVICES
Always likely to have mobile phone on you so will always have sat nav
Generally smaller and lighter
Might have to pay for expensive app
Using GPS runs the battery down quickly
Charges – internet usage

28. Impact on organisations
Organisations now need a strong online presence due to the popularity of the use of digital devices:
PERSONAL DIGITAL DEVICES
Blog – tell customers about developments
Websites – sell online
Viral marketing – advertise through video uploads
How?
Social networking sites– discussions
Profiling – tracking information about customer transactions

29. Impact on organisations
How can technology be used in education:
PERSONAL DIGITAL DEVICES
Apps – helps make learning more fun
Internet – online research
VLEs – allow access to learning resources
Interactive whiteboards – enhance learning experience
Ebook readers –access to texts
Specialist software – improves learning in certain subjects

30. Question Time
Demi likes to use her personal media player when she goes running. List two features of personal media players that make them suitable for this. (2 marks)
Portable, use solid state memory
2) Modern games consoles are multi-functional devices. Apart from gaming, give two other uses for games consoles
View HD movies using blu-ray drive, use internet to stream movies, internet for social networking
PERSONAL DIGITAL DEVICES

31. ESSAY PRACTICE!
Question Time
Some people claim that playing video games is beneficial. Make a reasoned argument to support this point of view. (6 marks)
PERSONAL DIGITAL DEVICES
Learning skills & specific subjects
Improve thinking, problem solving, reasoning & memory
Specialist games for subjects (History etc)
Mental development – spatial awareness & attention span
- Improve spatial awareness & hand-eye coordination
Physical activity
- Dance & fitness (Kinect, Wii)
Social skills
- Multi player games
Staying safe
- Prevents people from going out and getting into trouble