Test
Comp. Science Illuminated Ch 1-3
Preguntas del test (20)
1A vacuum tube was a device used in the first generation of computers to link computers together into a network.
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2The base of a number system determines the number of digit positions that can be used for any number in the system.
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3What is the name of a solid piece of silicon that contains transistors, other components, and their connections?
- Aintegrated circuit
- Bmotherboard
- C workstation
- Dmagnetic disk
- Eserver
4How many digits are there in the binary number system?
- A7
- B1
- C9
- D2
- E8
5True or False? A high-level language is more English-like than assembly language.
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6True or False? Binary numbers can be converted to octal, but not to hexadecimal.
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7Which language is built into the electrical circuitry of a computer?
- Acompiled language
- Bassembly language
- Cinterpreted language
- Dmachine language
- Ehigh-level language
8What is the decimal value of the largest digit in the hexadecimal number system?
- A9
- B0
- C10
- D15
- E16
9Two hexadecimal digits can be stored in one byte.
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10 A mercury thermometer is a digital device.
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11In base 16, the digit D is used to represent the decimal value
- A13
- B15
- C12
- D10
12How many things can be represented using three bits?
- A3
- B6
- C8
- D4
- E12
13 Electronic signals are easier to manage if they transfer only binary data.
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14In a signed-magnitude representation of numbers there are two representations of zero.
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15In general, how many things can be represented by n bits?
- An^2
- B 2n
- C2n + 1
- D2^n
- En^4
16Which technique for representing numeric data uses the mantissa to hold the significant digits of a value?
- Ascientific notation
- B ten's complement
- Cfloating point
- Dfixed-sized numbers
- Esigned-magnitude
17Audio data is often represented on a computer by sampling the continuous signal that represents a sound wave.
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18Run-length encoding replaces common words with shorter symbols.
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19Which of the following is true about representing color as an RGB value?
- A it is composed of four separate numbers
- Bit cannot represent the color white
- Cit cannot represent the color black
- Dit mimics the way color is perceived by the human eye
- Eit cannot represent transparency
20Which text compression technique uses variable-length binary strings to represent characters, assigning frequently used characters short codes?
- AHuffman encoding
- BASCII encoding
- C run-length encoding
- Dkeyword encoding
- Echaracter set encoding
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- johnrclark12
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- English
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