1
Q
Put the units of data and capacity in order
A
Bit Nibble Byte Kilobyte Megabyte Gigabyte Terabyte Petabyte
2
Q
What is a bit?
A
A Binary Digit is the smallest unit of data a computer can store
3
Q
How many bits is a nibble?
A
It describes a group of 4 bits
4
Q
How many bits is a byte?
A
A ‘byte’ is a collection of 8 bits.
5
Q
Why is binary used for computers?
A
Because of binary components are:
Easier to manufacture
Cheaper
More reliable
6
Q
Calculations of data capacity requirements?
A
text files:
Bit per character x Number of characters
Sound files:
Frequency × bit depth × channels = bit rate
bit rate x duration (s) = file size
Image files:
colour depth x image height x image width
Computer Science
flashcards
Decks in class (24)
# Cards
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1.2.1 Primary Storage3
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1.2.2 Secondary Storage6
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1.2.3 Unit6
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1.2.4 Data Storage (Numbers)10
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1.2.4 Data storage (Characters)2
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1.2.4 Data Storage (Images)5
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1.2.4 Data Storage (Sound)6
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1.2.5 Compression6
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2.1.1- Networks intro9
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2.1.2- types of Networks3
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2.1.3- Client-Server Network5
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2.1.4-Peer to Peer networks3
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2.1.5- Network hardware11
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2.1.6- What is the internet?3
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2.1.7- URLs, DNS and Web Hosting12
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2.1.8- Cloud12
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2.1.9- Pros and Cons of The Cloud9
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2.2.1- Topology14
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2.2.2-WiFi2
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2.2.3-Addressing5
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2.2.4-Network Protocols7
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2.2.5-Application Protocols9
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2.2.6-Layers8
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Virtual Networks1
