Personal Digital Devices Key Words

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Text Messages-(Short Message Service SMS)

Social Networking Sites

Instant Messaging

Media Messages-(Multimedia Messaging Service, MMS)

Voice Calls

Video Calls


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People use Digital Devices for Leisure such as:

-Displaying Photos With Digital Photo Frames

-Watching HD Films on Blueray

-Watching More Channels On Digital TV

-Streaming Films

-Downloading Music

-Listening to Music and Watching Films  With Personal Media Players

-Playing Games With Consoles or Computers

-Reading With ebook

-Keeping in Through Social Networking Sites

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People use digital devices when travelling! Digital Devices can:

-Use GPS (Gobal Positioning System)

-Track The Location Of Cars And Vans

-Geotag Images

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How secure and hard your personal device is to hack and get into. You can improve your security by having:

- Passwords

- Pin 

- Lock Screen

- Biometrics

- Facial Recognition

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How reliable and trustworthy your device is :)

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The amount of data your device can hold

1 Byte

1 Kilobyte = 1000 Bytes

1 Megabyte = 1000 Kilobytes

1 Gigabyte = 1000 Megabytes

1 Terabyte = 1000 Gigabytes

Internal Memory

While the microprocessor is working it needs to store all the program instructions and data. It stores this on its intenal memory. Different devices have different internal memory which is measures in Bytes.

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Speed of Internet Connection and Processor

Bandwidth- Mesurement of capacity

Bandwidth is the number of bits that can go through the network connection in 1 second.

The higher the bandwidth the quicker the connection

Latency- Measurement of delay

Latency is the time in milliseconds between each bit leaving one device and arriving at the other. its is measured in milliseconds

The Lower the latency, the quicker the connection

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Types Of Flash Memory

Secure Digital (SD) Card- Stores up to 4 GB

Micro SD Cards - For smaller devices

SDXC (Extended Capactiy) Card - Stores up to 2TB

USB Flash Drice or Memory Stick- Plugs into the UBS prot and stores uo to 256GB

SDHC (High Capactity Card)- Stores Up To 32 GB

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Input Devices

Put data into the devices

- Touch-Sensitive Jog Dial - Used for simple actions like skipping songs

- Mouse - Pointing and Inputting Device

- Key Board - Used to enter text

- Game Controller - Used for gaming

- Webcam - used to input visual data, peripheral or inbuilt

-Touch screen - Input device contolled by finger or stylus

- Microphone - Used to input audio data, peripheral or input

- Joystick - Used for gaming, used to control devices, CCTV, Cameras, Robots

- Graphics Tablet - Used to input drawings

- Scanner - Digitises printed documents, OpticalCharacter Recognition (OCR) can turn text into a editable format

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Output Devices

Sends data out of the computer

- Speakers - Peripheral or inbuilt device allowing you to hear audio output

- Docking Station - Amplifies Audio Output of Small Devices, Charges devices

- Headphones - Allows just one person to hear audio output

- Printer - Allows you to produce a "hardcopy"

- Headset - Combines microphone and headpgones to input and output audio data

- Screen - Inbuilt Display Screens (eg. Laptop, Smartphone) or monitor

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