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Comp. Science Illuminated Ch 4-5

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C2 Computer Science Quiz on Comp. Science Illuminated Ch 4-5, created by johnrclark12 on 09/10/2014.
johnrclark12
Quiz by johnrclark12, updated more than 1 year ago
johnrclark12
Created by johnrclark12 almost 10 years ago
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Resource summary

Question 1

Question
A gate is constructed of one or more transistors.
Answer
  • True
  • False

Question 2

Question
An AND gate and an OR gate produce opposite output.
Answer
  • True
  • False

Question 3

Question
The circle in the logic symbol of a NOT gate is known as what?
Answer
  • inversion bubble
  • sequential circuit
  • NAND gate
  • combinational circuit
  • completion sphere

Question 4

Question
Which gate produces a 1 only if all its inputs are 1 and a 0 otherwise?
Answer
  • NOT
  • XOR
  • OR
  • NOR
  • AND
  • NAND

Question 5

Question
A transistor is made of material that acts as a good insulator, such as rubber.
Answer
  • True
  • False

Question 6

Question
If an electrical signal is grounded, the electricity literally flows harmlessly to the ground.
Answer
  • True
  • False

Question 7

Question
Which gate does the following Boolean expression represent? X = A • B
Answer
  • NOR
  • NAND
  • NOT
  • OR
  • XOR
  • AND

Question 8

Question
Which gate does the following truth table represent?
Image:
table.PNG (image/PNG)
Answer
  • XOR
  • NOR
  • AND
  • NAND
  • NOT
  • OR

Question 9

Question
A logic diagram and a truth table are equally powerful techniques for describing the behavior of a circuit.
Answer
  • True
  • False

Question 10

Question
DeMorgan's law states that inverting the output of an AND gate is equivalent to inverting the individual input signals and then passing them through an OR gate.
Answer
  • True
  • False

Question 11

Question
Which gate produces the sum portion of two binary digits in a half adder?
Answer
  • XOR
  • AND
  • NAND
  • NOT
  • OR
  • NOR

Question 12

Question
A multiplexer (or mux) does which of the following?
Answer
  • adds two binary digits, taking the carry value into account
  • merges multiple input values into a single output value
  • acts as a memory circuit for a single binary digit
  • contains multiple S-R latch circuits
  • selects a single output value from a set of input values

Question 13

Question
The central processing unit (CPU) of a computer is often a single integrated circuit.
Answer
  • True
  • False

Question 14

Question
The prefix kilo means 1000 when referring to speed and 1024 when referring to storage.
Answer
  • True
  • False

Question 15

Question
A VLSI chip contains how many gates?
Answer
  • 10 to 100
  • 2
  • 1 to 10
  • 0
  • more than 100,000
  • 100 to 100,000

Question 16

Question
Which of the following executes an instruction once it is decoded?
Answer
  • auxiliary storage device
  • control unit
  • ROM
  • RAM
  • arithmetic/logic unit

Question 17

Question
RAM is non-volatile and ROM is volatile.
Answer
  • True
  • False

Question 18

Question
The fetch part of the fetch-execute cycle fetches the next instruction to be executed from memory.
Answer
  • True
  • False

Question 19

Question
The prefix micro refers to which power of ten?
Answer
  • -6
  • -3
  • -12
  • -9

Question 20

Question
If an ad for a computer describes a memory having 4 x 230 bytes, how many bytes of the computer are uniquely addressable?
Answer
  • 16GB
  • 4MB
  • 8GB
  • 8MB
  • 4GB

Question 21

Question
A register is a small storage area in the CPU.
Answer
  • True
  • False

Question 22

Question
The CPU determines what additional data may be needed to execute an instruction.
Answer
  • True
  • False

Question 23

Question
What does the term "Core™ Duo" refer to in the description of the components of the Instavialion 640 Laptop?
Answer
  • the presence of two central core lithium batteries in the laptop computer
  • the presence of two front side buses (FSBs) in the laptop computer
  • the presence of two software operating systems in the laptop computer
  • the presence of two central core processors in the laptop computer
  • the presence of two central hard drives in the laptop computer

Question 24

Question
A von Neumann computer architecture is best characterized by which of the following?
Answer
  • random access memory
  • program input device
  • stored-program concept
  • read only memory
  • the use of disk drives

Question 25

Question
A touch screen is both an input and output device.
Answer
  • True
  • False

Question 26

Question
The bus is a group of wires through which data travels within a computer.
Answer
  • True
  • False

Question 27

Question
Which parallel-processing approach applies the same program to multiple data sets using multiple processors?
Answer
  • synchronous processing
  • decode processing
  • tandem processing
  • pipelining processing
  • transfer processing

Question 28

Question
Which language is actually executed by the central processing unit of a computer?
Answer
  • high-level language
  • virtual language
  • machine language
  • assembly language
  • accumulator language

Question 29

Question
The seek time of a disk drive is the time it takes for the specified sector to rotate under the read/write head.
Answer
  • True
  • False

Question 30

Question
Each machine language instruction performs a single complex task, such as sorting a list of numbers.
Answer
  • True
  • False

Question 31

Question
Which touch screen technology uses a laminate that conducts electricity and causes current to flow to a finger or stylus when touched?
Answer
  • capacitive touch screen
  • infrared touch screen
  • addressable touch screen
  • surface acoustic wave touch screen
  • resistive touch screen

Question 32

Question
Which language uses mnemonics to represent instructions?
Answer
  • high-level language
  • accumulator language
  • assembly language
  • virtual language
  • machine language
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