Flashcards
Personal Digital Devices
Cards in this deck (13)
- 1PixelsThe unit of resolution. Each pixel is a tiny point in an image. The more pixels, the bigger the file size.
1 Megapixel = 1,000,000 Pixels - 2ResolutionMeasured in pixels, this is the quality and amount of information in an image.
- 3Digital zoomEnlarges part of the image (can become blurred).
- 4Optical zoomMoves the lens closer so light from the subject is brought to a focus on the sensor.
- 5Flash memoryType of memory ideal for portable devices because:
- Non-volatile
- No moving parts
- Transferable memory - 6BluetoothShort range wireless communication technology.
- 7SynchronisingWhen two devices, connected, can automatically exchange data.
- 8Wi-FiLonger distance wireless communications technology that uses radio waves. Allows connection to the internet.
- 9Processor speedMeasured in Hz, the number of clock ticks per second. Cycles of the fetch-decode-execute cycle.
- 10RAMMain memory available to the CPU
- 11HDMIHigh Definition Multimedia Interface
- 12MetadataText file containing information about a media file.
- 13Digital Rights Management DRMSoftware preventing you from copying downloaded media to protect the copyright holder.
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- GCSE ICT Flashcards on Personal Digital Devices, created by Edward Burfield on 17/03/2015.
- Created by
- Edward Burfield
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