ASCII and Unicode Quiz - yr8

What is the main objective of learning about ASCII and Unicode?

• To convert symbols into decimal

• To convert numbers into binary

• To convert letters into binary

• To convert letters into hexadecimal

What does ASCII stand for?

• American Standard Code for Information Interchange

• American System Code for Internet Interchange

• American System Code for Information Interchange

• American Standard Code for International Information

How many bits does standard ASCII use to encode characters?

• 6 bits

• 7 bits

• 8 bits

• 9 bits

Why is binary used in computers?

• Because it uses letters and numbers

• Because it is a base 10 system

• Because it can represent on and off states

• Because it is easy to read

What is the decimal value of the capital letter 'A' in ASCII?

• 64

• 66

• 67

• 65

What is the binary representation of the decimal value 65?

• 1000001

• 1000100

• 1000010

• 1000011

What is the decimal value of the lowercase letter 'a' in ASCII?

• 97

• 98

• 96

• 95

How many characters can be encoded using 7-bit ASCII?

• 512

• 64

• 128

• 256

What is the main limitation of 7-bit ASCII?

• It can only encode 128 characters

• It can only encode symbols

• It can only encode uppercase letters

• It can only encode numbers

How many characters can extended ASCII encode?

• 256

• 128

• 1024

• 512