Year 10 Computer Science Vocab List. Data Representation And Communication T1

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26 Terms

1
Binary
A system of communication that uses 2 symbols only.
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2
ADC
Analog to Digital Conversion, the process of converting an analog signal to digital.
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3
Amplitude
Size or magnitude of a signal (wave).
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4
Analog
Real (physical) entity - or copy of something real, e.g. an analog watch displays 2 hands.
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5
Collision
When 2 signals are sent at once and they interfere with each other.
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6
Continuous
Values that blend smoothly into each other; cannot write down all possible continuous values.
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7
Cross-talk
When signals within 1 wire affect signals in another wire.
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8
Cycle
Part of a process that repeats.
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9
DAC
Digital to Analog Conversion, the process of taking a digital signal and converting it into an analog signal.
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10
Denary
Base 10.
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11
Digital
A system where information is encoded discreetly.
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12
Discrete
In distinct chunks; opposite of continuous.
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13
Frequency
A measure of radio waves; high frequency radio waves can carry more data faster.
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14
Magnitude
Size.
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15
Medium
The physical ‘stuff’ a signal travels through, e.g., wires, air.
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16
Modulation
Changing the form/shape of a signal, e.g., wireless to optical.
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17
Overflow
When the addition of 2 binary numbers has a carry on the last bit, resulting in more bits than the operands.
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18
Parallel
When 2 or more components are joined side by side.
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19
Prefix
The letters at the start of a number, to indicate binary or denary.
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20
Pulse
A single discrete part of a digital electrical signal.
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21
Serial
When 2 or more components are connected end to end.
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22
Skew
When signals in parallel wires arrive at their destination at slightly different times.
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23
Suffix
A number/text at the end of a number to indicate binary or denary.
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24

Bus

Set of wires connecting multiple devices together

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25

Computer

Any device that can manipulate data

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26

Peripheral Devices

Any (non-computational) device connected to a computer. E.g printer, speaker

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