GCSE Data Types and Variables in Programming

What is the primary function of a variable in programming?

• To increase processing speed

• To manage the operating system

• To store data

• To interface with the user

Which data type is used to store whole numbers?

• BOOL

• INT

• CHAR

• FLOAT

What does 'implicit declaration' allow in some programming languages?

• Static typing only

• Manual memory management

• Forcing an error if data types mismatch

• Skipping the data type declaration

What is a string?

• A string is a True or False value.

• A string is a sequence of characters.
• A string is a whole number.

• A string is a sequence of letters.

What is a Float data type?

• Used to store whole numbers

• Used to store negative numbers

• Used to store decimal numbers

• Used to store true or false values

What is type casting?

• Converting from a float to an integer

• Converting from one data type to another

• Converting from a string to an integer

• Printing a string