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