Chapter 3

Question 1

a number to be divided by another number.

Answer 1

DIVIDEND

Question 2

a number by which a dividend is divided.

Answer 2

DIVISOR

Question 3

the number obtained by division

Answer 3

QUOTIENT

Question 4

part of a dividend that is left over when the dividend is not evenly divisible by the divisor.

Answer 4

REMAINDER

Question 5

BCD

Answer 5

Binary Coded Decimal

Question 6

When a decimal number is represented by its equivalent binary, we call
it —————————–. But if each digit of a decimal number is represented by its binary equivalent, the result is —————————–

Answer 6

Straight Binary Coding, Binary Coded-Decimal

Question 7

Representing Decimal number in its binary equivalent in BCD code requires ———- bits on each digit.

Answer 7

FOUR

Question 8

is a weighted code that is commonly used in digital systems when it is necessary to show decimal numbers such as in digital clock displays.

Answer 8

Binary coded decimal (BCD)

Question 9

also known as Gray code

Answer 9

reflected binary code

Question 10

is a binary numeral system where two successive values differ in only one bit.

Answer 10

Gray code

Question 11

Gray code is designed by after

Answer 11

Frank Gray and patented in 1953

Question 12

The reflected binary code was originally designed to prevent spurious output from ————————–.

Answer 12

electromechanical switches

Question 13

Today, Gray codes are widely used to facilitate —————— in digital
communications such as digital terrestrial television and some cable TV systems.

Answer 13

error correction

Question 14

It is an —————– code that has a ——— bit change between one code word and the next in a sequence

gray code

Answer 14

unweighted, single

Question 15

is used to avoid problems in systems where an error
can occur if more than one bit changes at a time.

Answer 15

Gray code

Question 16

Floyd on its book ——————– gives an example of a ———————– as a typical application of using gray code generator.

Answer 16

digital Fundamental, shaft encoder

Question 17

This sensor detects the presence and absence of colors.

Answer 17

three IR emitter/detector

Question 18

Light color represents “————” and darker color represents “—————”. The light color gives use good reflection while the dark color gives poor reflection.

Answer 18

logic 1, logic 0

Question 19

The Gray code is used in applications where numbers change rapidly. In gray code only one bit changes from each value to the next. This system eliminates the potential errors

readings only

Question 20

Binary to Gray code conversion method strongly follows the operation of ————

Answer 20

Exclusive-OR gate.

XOR