A gate is constructed of one or more transistors.
An AND gate and an OR gate produce opposite output.
The circle in the logic symbol of a NOT gate is known as what?
Which gate produces a 1 only if all its inputs are 1 and a 0 otherwise?
A transistor is made of material that acts as a good insulator, such as rubber.
If an electrical signal is grounded, the electricity literally flows harmlessly to the ground.
Which gate does the following Boolean expression represent?
X = A • B
Which gate does the following truth table represent?
A logic diagram and a truth table are equally powerful techniques for describing the behavior of a circuit.
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.
Which gate produces the sum portion of two binary digits in a half adder?
A multiplexer (or mux) does which of the following?
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
The central processing unit (CPU) of a computer is often a single integrated circuit.
The prefix kilo means 1000 when referring to speed and 1024 when referring to storage.
A VLSI chip contains how many gates?
10 to 100
1 to 10
more than 100,000
100 to 100,000
Which of the following executes an instruction once it is decoded?
auxiliary storage device
RAM is non-volatile and ROM is volatile.
The fetch part of the fetch-execute cycle fetches the next instruction to be executed from memory.
The prefix micro refers to which power of ten?
If an ad for a computer describes a memory having 4 x 230 bytes, how many bytes of the computer are uniquely addressable?
A register is a small storage area in the CPU.
The CPU determines what additional data may be needed to execute an instruction.
What does the term "Core™ Duo" refer to in the description of the components of the Instavialion 640 Laptop?
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
A von Neumann computer architecture is best characterized by which of the following?
random access memory
program input device
read only memory
the use of disk drives
A touch screen is both an input and output device.
The bus is a group of wires through which data travels within a computer.
Which parallel-processing approach applies the same program to multiple data sets using multiple processors?
Which language is actually executed by the central processing unit of a computer?
The seek time of a disk drive is the time it takes for the specified sector to rotate under the read/write head.
Each machine language instruction performs a single complex task, such as sorting a list of numbers.
Which touch screen technology uses a laminate that conducts electricity and causes current to flow to a finger or stylus when touched?
capacitive touch screen
infrared touch screen
addressable touch screen
surface acoustic wave touch screen
resistive touch screen
Which language uses mnemonics to represent instructions?