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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?

Binarycoded 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 decisionmaking 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


Flipflops are what type of multivibrators?

Bistable


Flipflops may NOT be used for which of the following operations?

Subtraction


Which of the following statements describes a toggle flipflop?

A bistable device with a single input


What are the inputs to a D flipflop?

Data and Clock


What is the purpose of a D flipflop?

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 negativegoing transition of the clock pulse.


Which of the following statements is correct concerning D flipflops?

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?

Oneshot 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?

Transistortransistor
