Topic 1: Personal Digital Devices

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• Mobile phones in different areas around the world use different frequencies or network bands. if the user wants to use their mobile phones abroad they will have to have dual band, tri band, to cover the whole world, a quad band phone.

1. Set a pin for the phone
2. Restrict Bluetooth usage
3. Record IMEI Number

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   • The IMEI number is a unique number for your phone that helps it block and track your mobile.

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• A quick processor means a fast computer.

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• allows you to see/hear graphics, videos, music and games.

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• A WI-FI enabled computer can form part of a wireless network.

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• Lots of RAM will let the computer support more applications.

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• A large storage capacity means you can store more files.

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• Many peripherals use a USB connection

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• For portable devices a long battery life means less frequent charging

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• Images are made up of pixels. a pixel is a tiny point in an image. a megapixel is one million pixels generally the more pixels the more detailed the image so the more the image can be enlarged. the more pixels in an image, the larger the file size.

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• This doesn't really zoom- just crops and enlarges part of the image, which can affect image quality.

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• This moves the lens away from the sensor and closer to the subject, bringing light from the subject closer.

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• Images are made up of pixels. a pixel is a tiny point in an image. a megapixel is one million pixels. Generally, the more pixels, the more detailed the image so the more the image can be enlarged. the more pixels in an image, the larger the file size.

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• Digital zoom: doesn't really zoom-just crops and enlarges part of the image, which can affect image quality. Optical zoom: moves the lens away from the sensor and closer to the subject, bringing light from the subject closer