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Comp. Science Illuminated Ch 1-3

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Quiz Questions Given
johnrclark12
Quiz by johnrclark12, updated more than 1 year ago
johnrclark12
Created by johnrclark12 about 10 years ago
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Question 1

Question
A vacuum tube was a device used in the first generation of computers to link computers together into a network.
Answer
  • True
  • False

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.
Answer
  • True
  • False

Question 3

Question
What is the name of a solid piece of silicon that contains transistors, other components, and their connections?
Answer
  • integrated circuit
  • motherboard
  • workstation
  • magnetic disk
  • server

Question 4

Question
How many digits are there in the binary number system?
Answer
  • 7
  • 1
  • 9
  • 2
  • 8

Question 5

Question
True or False? A high-level language is more English-like than assembly language.
Answer
  • True
  • False

Question 6

Question
True or False? Binary numbers can be converted to octal, but not to hexadecimal.
Answer
  • True
  • False

Question 7

Question
Which language is built into the electrical circuitry of a computer?
Answer
  • compiled language
  • assembly language
  • interpreted language
  • machine language
  • high-level language

Question 8

Question
What is the decimal value of the largest digit in the hexadecimal number system?
Answer
  • 9
  • 0
  • 10
  • 15
  • 16

Question 9

Question
Two hexadecimal digits can be stored in one byte.
Answer
  • True
  • False

Question 10

Question
A mercury thermometer is a digital device.
Answer
  • True
  • False

Question 11

Question
In base 16, the digit D is used to represent the decimal value
Answer
  • 13
  • 15
  • 12
  • 10

Question 12

Question
How many things can be represented using three bits?
Answer
  • 3
  • 6
  • 8
  • 4
  • 12

Question 13

Question
Electronic signals are easier to manage if they transfer only binary data.
Answer
  • True
  • False

Question 14

Question
In a signed-magnitude representation of numbers there are two representations of zero.
Answer
  • True
  • False

Question 15

Question
In general, how many things can be represented by n bits?
Answer
  • n^2
  • 2n
  • 2n + 1
  • 2^n
  • n^4

Question 16

Question
Which technique for representing numeric data uses the mantissa to hold the significant digits of a value?
Answer
  • scientific notation
  • ten's complement
  • floating point
  • fixed-sized numbers
  • signed-magnitude

Question 17

Question
Audio data is often represented on a computer by sampling the continuous signal that represents a sound wave.
Answer
  • True
  • False

Question 18

Question
Run-length encoding replaces common words with shorter symbols.
Answer
  • True
  • False

Question 19

Question
Which of the following is true about representing color as an RGB value?
Answer
  • it is composed of four separate numbers
  • it cannot represent the color white
  • it cannot represent the color black
  • it mimics the way color is perceived by the human eye
  • 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
  • Huffman encoding
  • ASCII encoding
  • run-length encoding
  • keyword encoding
  • character set encoding
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