Unit 1 Review

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Decimal Number

Back

A base-10 number with ten possible digits

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Binary Number

Back

A base-2 number with two possible digits.

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Bit

Back

Each place value represents a “bit” (binary digit). It is a single unit of information in a computer.

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Byte

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8 bits = 1 byte.

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Overflow Error

Back

An error that occurs when attempting to represent a number that is too large.

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Round-off Error

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Error resulting from attempting to represent a number that is too precise.

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Analog data

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Data with values that change continuously or smoothly over time.

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Digital Data

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Data that changes discretely through a finite set of possible values.

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Sampling

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The process of creating a digital representation of analog data by measuring the analog data at regular intervals, called samples.

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Lossless Compression

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A process for reducing the number of bits needed to represent data without losing any information. This process is reversible.