Digital Number Systems Quiz

Froggy Jumps

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Number systems in computers

Created by

Francis Evanz Cruz

Philippines

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Froggy Jumps Digital Number Systems QuizOnline version Number systems in computers by Francis Evanz Cruz 1 What base is used by the binary number system? a Base 10 b Base 16 c Base 2 2 What is the purpose of two's complement in computers? a Represent signed integers b Represent floating-point numbers c Encrypt data 3 Which number system uses digits 0-9 and A-F? a Octal b Hexadecimal c Binary 4 Which base is commonly used to display memory addresses? a Hexadecimal b Binary c Decimal 5 What is the difference between unsigned and signed binary numbers? a Signed has more bits b Unsigned uses decimals c Signed uses a sign bit/two's complement; unsigned does not 6 What does BCD stand for? a Binary Coded Digit b Binary-Coded Decimal c Base Character Decimal 7 When does overflow occur in fixed-width binary arithmetic? a When a carry is generated b Only in subtraction c When the result cannot be represented in the chosen bit width 8 What encoding maps decimal digits 0–9 to 4-bit codes? a BCD b Gray code c ASCII 9 In binary, the rightmost bit represents which value? a 2^2 = 4 b 2^0 = 1 c 2^1 = 2 10 What is the hexadecimal equivalent of decimal 255? a AA b FF c 1F

Froggy Jumps

Digital Number Systems QuizOnline version

Number systems in computers

by Francis Evanz Cruz

What base is used by the binary number system?

Base 10

Base 16

Base 2

What is the purpose of two's complement in computers?

Represent signed integers

Represent floating-point numbers

Encrypt data

Which number system uses digits 0-9 and A-F?

Octal

Hexadecimal

Binary

Which base is commonly used to display memory addresses?

Hexadecimal

Binary

Decimal

What is the difference between unsigned and signed binary numbers?

Signed has more bits

Unsigned uses decimals

Signed uses a sign bit/two's complement; unsigned does not

What does BCD stand for?

Binary Coded Digit

Binary-Coded Decimal

Base Character Decimal

When does overflow occur in fixed-width binary arithmetic?

When a carry is generated

Only in subtraction

When the result cannot be represented in the chosen bit width

What encoding maps decimal digits 0–9 to 4-bit codes?

BCD

Gray code

ASCII

In binary, the rightmost bit represents which value?

2^2 = 4

2^0 = 1

2^1 = 2

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Digital Number Systems Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Digital Number Systems QuizOnline version

by Francis Evanz Cruz

What base is used by the binary number system?

What is the purpose of two's complement in computers?

Which number system uses digits 0-9 and A-F?

Which base is commonly used to display memory addresses?

What is the difference between unsigned and signed binary numbers?

What does BCD stand for?

When does overflow occur in fixed-width binary arithmetic?

What encoding maps decimal digits 0–9 to 4-bit codes?

In binary, the rightmost bit represents which value?

What is the hexadecimal equivalent of decimal 255?