Units Flashcards

1
Q

What do computers use units for?

A

Computers use units for measuring data

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2
Q

What are Bits?

A

A single binary digit (1 or 0). Bits are the smallest measure of data

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3
Q

What does 1 represent?

A

1 is used to show that electricity is flowing

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4
Q

What does 0 represent?

A

0 is used to represent that electricity is not flowing

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5
Q

What is a nibble?

A

4 bits

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6
Q

What is a byte(B)?

A

8 bits

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7
Q

What is a kilobyte(KB)?

A

1000 bytes

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8
Q

What is a megabyte(MB)?

A

1000 kilobytes

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9
Q

What is a gigabyte(GB)?

A

1000 megabyte

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10
Q

What is a terabyte(TB)?

A

1000 gigabytes

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11
Q

What is a Petabyte(PB)?

A

1000 terabytes

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12
Q

What is a byte used to store?

A

A byte is big enough to store one character (like x,e,m, £)

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13
Q

What are KBs or MBs used to store?

A

Most files like songs, pictures, documents

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14
Q

What are GBs used to store?

A

HD files and complex apps

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15
Q

What a GBs and TBs used to store?

A

Secondary Storage capacity

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16
Q

How many values can bits take?

A

one of two different values (1 or 0)

17
Q

How many values can Nibbles take?

A

2⁴=16 different values

18
Q

How many values can a byte take?

A

2⁸= 256 different values