J277 - 1.2 - Character Sets

What is a bit-pattern?

• A sequence of letters used to represent data

• A combination of 1s and 0s used to represent data

• A type of computer hardware

• A programming language

How many unique bit-patterns can be created using 2 bits?

• 2

• 3

• 4

• 5

Which of the following is NOT considered a character in a character set?

• Uppercase letters

• Punctuation marks

• Numbers

• Computer hardware

What is a character set?

• A collection of computer programs

• A standardised collection of characters and their bit-patterns

• A type of computer memory

• A set of computer commands

Which of the following is an example of a non-printing command?

• A

• 1

• Enter

• $

Why is it important for computers to have an agreed standard for character codes?

• To increase the speed of the computer

• To ensure efficient communication and text exchange between computers

• To reduce the cost of computer hardware

• To improve the graphics quality

What is the numeric character code used for?

• To represent the size of a file

• To represent each character digitally

• To measure the speed of a computer

• To calculate the power consumption

Which of the following is a punctuation character?

• A

• 5

• ?

• Enter

How many bits are needed to create 8 unique bit-patterns?

• 2

• 3

• 4

• 5

What does the bit-pattern '11' represent in a 2-bit system?

• The first character

• The second character

• The third character

• The fourth character