Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
50 Cards in this Set
- Front
- Back
Modern number systems are built around which of the following components?
|
Unit, numner and radix
|
|
What term describes a single object in a modern number system?
|
Unit
|
|
What is a number?
|
A symbol representing a unit or quantity.
|
|
Which of the following symbols is NOT an Arabic figure?
|
C
|
|
What term describes the number of symbols used in a number system?
|
Radix
|
|
Using positional notation, what two factors determine the value of a number?
|
Symbol and Position
|
|
The power of a number is indicated by the _________.
|
Exponent
|
|
What is the value of 5 times 100?
|
5
|
|
Which of the following numbers is a mixed number?
|
14.03
|
|
What term describes the symbol that separates the whole and fractional numbers in any number system?
|
Radix point
|
|
What term is defined as a number to be added to a preceding number?
|
Addend
|
|
In subtraction, the (a) is subtracted from the (b).
|
(a) Subtrahend
(b) Minuend |
|
The result of subtraction is known as the ________.
|
Difference
|
|
Positional notation for the binary system is based on powers of ___.
|
2
|
|
Which digit is the MSD in the binary number 1011001?
|
The 1 farthest to the left
|
|
Subtraction is accomplished by which of the following methods in a computer that can only add?
|
Complementary Subtraction
|
|
What is the radix of the octal number system?
|
8
|
|
One octal digit is represented by how many binary digits?
|
Three
|
|
Which of the following numbers does NOT represent a hexadecimal value?
|
9FGF
|
|
Which of the following terms describes the first remaineder when converting decimal numbers to other bases?
|
LSD
|
|
What term describes the use of four binary digits to represent one decimal digit?
|
Binary-coded decimal
|
|
Which of the following statements describes logic polarity?
|
A logic 1 is a positive voltage; a logic 0 is a negative voltage
|
|
A chart that lists all possible input combinations and resultant output is called a ______ ________.
|
Truth Table
|
|
What is a logic gate?
|
A decision-making circuit
|
|
Which of the following logic gates requires all inputs to be TRUE at the same time to produce a TRUE output?
|
AND
|
|
What is the purpose of an inverter?
|
To complement the input
|
|
Which of the following gates produces a HIGH output when any or all of the inputs are LOW?
|
NAND
|
|
The output of a NOR gate will be HIGH under which of the following conditions?
|
When all the inputs are LOW
|
|
Boolean algebra is used primarily by which of the followng groups?
|
Design engineers
|
|
Which of the following Boolean laws states, "a term that is TRUE in one part of an expression will be TRUE in all parts of the expression."
|
Identity Law
|
|
The examples AB=BA and A+B=B+A represent which of the following Boolean laws?
|
Commutative
|
|
What type of logic gate is modified to produce an exclusive OR gate?
|
OR
|
|
Which of teh following circuits will add two binary digits but not produce a carry?
|
Quarter adder
|
|
Which of the following gates performs teh same function as a quarter adder?
|
Exclusive OR
|
|
Which of the following statements describes the difference between a half adder and a full adder?
|
A full adder produces a carry
|
|
Flip-flops are what type of multivibrators?
|
Bistable
|
|
Flip-flops may NOT be used for which of the following operations?
|
Subtraction
|
|
Which of the following statements describes a toggle flip-flop?
|
A bistable device with a single input
|
|
What are the inputs to a D flip-flop?
|
Data and Clock
|
|
What is the purpose of a D flip-flop?
|
To store data until it is needed
|
|
An inverter on the clock input has which of the following effects on the D flipflop?
|
The output will change on the negative-going transition of the clock pulse.
|
|
Which of the following statements is correct concerning D flip-flops?
|
The output is delayed up to one clock pulse
|
|
The circuit which generates a timing signal to control operations is called a/an ________.
|
Clock
|
|
Which of the following statements is true regarding astable multivibrators used as clocks?
|
The frequency stability may be increased by applying a higher frequency trigger.
|
|
Which of the following types of circuits will produce a stable clock when triggered by an outside source?
|
One-shot multivibrator
|
|
Which of the following types of clocks would probably be used in a complex piece of equipment with a variety of timing requirements?
|
Multiphase
|
|
What term identifies a series of FFs designed to temporarily store information?
|
Register
|
|
Which of the following statements describes parallel transfer?
|
All data bits are xferred simultaneously
|
|
Logic families are identified by which of the following means?
|
The types of elements used
|
|
A TTL Logic circuit would use which of the following types of elements?
|
Transistor-transistor
|