Lecture 2 - Introduction to Computing (2/2)

Lossless compression means the data can be retrieved without losing any of the original information.

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A computer represents information in an analog form.

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A computer must be use the binary number system to represent information.

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A digital signal represents one of two values at any point in time.

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Four bits can be used to represent one of two values at any point in time.

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The sign-magnitude representation of numbers has two representations for zero.

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Overflow occurs when the value that we compute cannot be fit into the number of bits we have allocated for the result.

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In the ASCII character set, there is no distinction is made between the uppercase and lowercase letters.

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The Unicode character set includes all of the characters in the ASCII character set.

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Keyword encoding places frequently used words with a single character set.

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