1437848
Descrição
Quiz por johnrclark12, atualizado more than 1 year ago
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Criado por johnrclark12
quase 10 anos atrás
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Questão 1
Questão
A gate is constructed of one or more transistors.
Responda
- True
- False
Questão 2
Questão
An AND gate and an OR gate produce opposite output.
Responda
- True
- False
Questão 3
Questão
The circle in the logic symbol of a NOT gate is known as what?
Responda
-
inversion bubble
-
sequential circuit
-
NAND gate
-
combinational circuit
-
completion sphere
Questão 4
Questão
Which gate produces a 1 only if all its inputs are 1 and a 0 otherwise?
Responda
-
NOT
-
XOR
-
OR
-
NOR
-
AND
-
NAND
Questão 5
Questão
A transistor is made of material that acts as a good insulator, such as rubber.
Responda
- True
- False
Questão 6
Questão
If an electrical signal is grounded, the electricity literally flows harmlessly to the ground.
Responda
- True
- False
Questão 7
Questão
Which gate does the following Boolean expression represent?
X = A • B
Responda
-
NOR
-
NAND
-
NOT
-
OR
-
XOR
-
AND
Questão 8
Responda
-
XOR
-
NOR
-
AND
-
NAND
-
NOT
-
OR
Questão 9
Questão
A logic diagram and a truth table are equally powerful techniques for describing the behavior of a circuit.
Responda
- True
- False
Questão 10
Questão
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.
Responda
- True
- False
Questão 11
Questão
Which gate produces the sum portion of two binary digits in a half adder?
Responda
-
XOR
-
AND
-
NAND
-
NOT
-
OR
-
NOR
Questão 12
Questão
A multiplexer (or mux) does which of the following?
Responda
-
adds two binary digits, taking the carry value into account
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merges multiple input values into a single output value
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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
Questão 13
Questão
The central processing unit (CPU) of a computer is often a single integrated circuit.
Responda
- True
- False
Questão 14
Questão
The prefix kilo means 1000 when referring to speed and 1024 when referring to storage.
Responda
- True
- False
Questão 15
Questão
A VLSI chip contains how many gates?
Responda
-
10 to 100
-
2
-
1 to 10
-
0
-
more than 100,000
-
100 to 100,000
Questão 16
Questão
Which of the following executes an instruction once it is decoded?
Responda
-
auxiliary storage device
-
control unit
-
ROM
-
RAM
-
arithmetic/logic unit
Questão 17
Questão
RAM is non-volatile and ROM is volatile.
Responda
- True
- False
Questão 18
Questão
The fetch part of the fetch-execute cycle fetches the next instruction to be executed from memory.
Responda
- True
- False
Questão 19
Questão
The prefix micro refers to which power of ten?
Responda
-
-6
-
-3
-
-12
-
-9
Questão 20
Questão
If an ad for a computer describes a memory having 4 x 230 bytes, how many bytes of the computer are uniquely addressable?
Responda
-
16GB
-
4MB
-
8GB
-
8MB
-
4GB
Questão 21
Questão
A register is a small storage area in the CPU.
Responda
- True
- False
Questão 22
Questão
The CPU determines what additional data may be needed to execute an instruction.
Responda
- True
- False
Questão 23
Questão
What does the term "Core™ Duo" refer to in the description of the components of the Instavialion 640 Laptop?
Responda
-
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
Questão 24
Questão
A von Neumann computer architecture is best characterized by which of the following?
Responda
-
random access memory
-
program input device
-
stored-program concept
-
read only memory
-
the use of disk drives
Questão 25
Questão
A touch screen is both an input and output device.
Responda
- True
- False
Questão 26
Questão
The bus is a group of wires through which data travels within a computer.
Responda
- True
- False
Questão 27
Questão
Which parallel-processing approach applies the same program to multiple data sets using multiple processors?
Responda
-
synchronous processing
-
decode processing
-
tandem processing
-
pipelining processing
-
transfer processing
Questão 28
Questão
Which language is actually executed by the central processing unit of a computer?
Responda
-
high-level language
-
virtual language
-
machine language
-
assembly language
-
accumulator language
Questão 29
Questão
The seek time of a disk drive is the time it takes for the specified sector to rotate under the read/write head.
Responda
- True
- False
Questão 30
Questão
Each machine language instruction performs a single complex task, such as sorting a list of numbers.
Responda
- True
- False
Questão 31
Questão
Which touch screen technology uses a laminate that conducts electricity and causes current to flow to a finger or stylus when touched?
Responda
-
capacitive touch screen
-
infrared touch screen
-
addressable touch screen
-
surface acoustic wave touch screen
-
resistive touch screen
Questão 32
Questão
Which language uses mnemonics to represent instructions?
Responda
-
high-level language
-
accumulator language
-
assembly language
-
virtual language
-
machine language
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