used by humans to process information, it can not be processed by computers. It is a continuous range of values and it changes smoothly. An example of an analogue device is a clock.
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Digital Data is...
used by computers to process information, it can not be processed by humans. It is stored as discreet values and is mad up of Binary digits (bits).
An example of a digital device is a smartphone.
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Binary is...
Made up of a sequence of 0's and 1's. All information processed by a computer is in the form of 0's and 1's
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1 Binary digit is a bit...
8 bits of Binary data are in a byte
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Magnetic storage are...
computer hard drives and digital cassette tapes. They have a large capacity and offers high speed data retrieval. But they not as portable as other types of storage and data can be lost near strong magnetic fields
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Optical storage are....
DVDs, CDs and Blu-ray. They are very portable and they are not affected by magnetic fields. But they are easily scratched and have much slower data retrieval compared to a hard disk
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Solid state storage are...
USB, SSD drives and SD cards. They have a large capacity and they have a faster data retrieval than a hard disk. However, they are expensive and can be easily lost or stolen.
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Cloud storage are...
things like Google Drive, Microsoft OneDrive and Apple iCloud. The data is safely backed up at a remote location and you can access information from anywhere. On the other hand if the storage company shuts down all data could be lost and it usually costs
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ADC
We use an Analogue to Digital Converter (ADC) to convert Analogue data to digital data so it can be processed by a computer.
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DAC
We use a Digital to Analogue converter (DAC) to convert digital data to Analogue data so it can be processed by humans.
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Other cards in this set
Card 2
Front
used by computers to process information, it can not be processed by humans. It is stored as discreet values and is mad up of Binary digits (bits).
An example of a digital device is a smartphone.
Back
Digital Data is...
Card 3
Front
Made up of a sequence of 0's and 1's. All information processed by a computer is in the form of 0's and 1's
Back
Card 4
Front
8 bits of Binary data are in a byte
Back
Card 5
Front
computer hard drives and digital cassette tapes. They have a large capacity and offers high speed data retrieval. But they not as portable as other types of storage and data can be lost near strong magnetic fields
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