Y9NS-flashcards

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Bob wants a medium to transfer his essay home from work so he can work on his laptop
- USB sick
- they are cheap . They have enough storage
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Analogue data is used by humans to process information .
Analogue data :
is a cntinuous range of values
chages smoothly
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Digital data is used by computures to process information
Digital data :
- is sorted as discrete values
- is made up of binary digits
- cannot be processed by a human
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Examples of analogue devices
- wighing scales
- cassette tap
- guitar
- film camera
Examples of digital devices
- digital camera
- smart phone
- tablet
- VR headsets
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1 binary didgit is called A BIT
4BITs are called A NIBBLE
8BITs are called A BYTE
digital data is stortd as dicrete values and is made up of binary digits
- Analougue data is a countinous range of values and chages smoothly
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digital data is stored using different storage divices known as mediums .
Examples :
computur hard drive
digital cassette - tapes
optical storage uses a laser to shine and reflect light to read stoage data.
Examples :
dvd
blu-ray
CD
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solid state storage has no moving parts . it hols data usig lctronic switches .
Examples :
USB
SSD drive
SD cards
cloud storage stores data at a remote location online , files and data are sent to thr cloud . they get sent to a server .
Examples :
Apple icloud
Google drive
Microsoft Onedrive
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The device that changes a human voice into digital data in ADC
The device that changes digital data so a sound can be heard by a human is DAC
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simple rate and bit - depth :
The higher the bit - depth , the higher the quality of the sound
compressed : files are lower quality recording . the main advantage is that the size of the file is easy to download , the main disadvantage is the sound quality is not as good.
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Other cards in this set

Card 2

Front

Analogue data is used by humans to process information .

Back

Analogue data :
is a cntinuous range of values
chages smoothly

Card 3

Front

Digital data is used by computures to process information

Back

Preview of the front of card 3

Card 4

Front

Examples of analogue devices
- wighing scales
- cassette tap
- guitar
- film camera

Back

Preview of the front of card 4

Card 5

Front

1 binary didgit is called A BIT
4BITs are called A NIBBLE
8BITs are called A BYTE

Back

Preview of the front of card 5
View more cards

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