Question 1
Question
A vacuum tube was a device used in the first generation of computers to link computers together into a network.
Question 2
Question
The base of a number system determines the number of digit positions that can be used for any number in the system.
Question 3
Question
What is the name of a solid piece of silicon that contains transistors, other components, and their connections?
Answer
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integrated circuit
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motherboard
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workstation
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magnetic disk
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server
Question 4
Question
How many digits are there in the binary number system?
Question 5
Question
True or False? A high-level language is more English-like than assembly language.
Question 6
Question
True or False? Binary numbers can be converted to octal, but not to hexadecimal.
Question 7
Question
Which language is built into the electrical circuitry of a computer?
Answer
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compiled language
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assembly language
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interpreted language
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machine language
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high-level language
Question 8
Question
What is the decimal value of the largest digit in the hexadecimal number system?
Question 9
Question
Two hexadecimal digits can be stored in one byte.
Question 10
Question
A mercury thermometer is a digital device.
Question 11
Question
In base 16, the digit D is used to represent the decimal value
Question 12
Question
How many things can be represented using three bits?
Question 13
Question
Electronic signals are easier to manage if they transfer only binary data.
Question 14
Question
In a signed-magnitude representation of numbers there are two representations of zero.
Question 15
Question
In general, how many things can be represented by n bits?
Question 16
Question
Which technique for representing numeric data uses the mantissa to hold the significant digits of a value?
Answer
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scientific notation
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ten's complement
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floating point
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fixed-sized numbers
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signed-magnitude
Question 17
Question
Audio data is often represented on a computer by sampling the continuous signal that represents a sound wave.
Question 18
Question
Run-length encoding replaces common words with shorter symbols.
Question 19
Question
Which of the following is true about representing color as an RGB value?
Answer
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it is composed of four separate numbers
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it cannot represent the color white
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it cannot represent the color black
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it mimics the way color is perceived by the human eye
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it cannot represent transparency
Question 20
Question
Which text compression technique uses variable-length binary strings to represent characters, assigning frequently used characters short codes?
Answer
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Huffman encoding
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ASCII encoding
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run-length encoding
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keyword encoding
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character set encoding