Integer: The keyword used for integer data types is int. Integers typically require 4 bytes of memory space and range from -2147483648 to 2147483647.
Character: Character data type is used to store characters. The keyword used for character data type is char. Characters typically require 1 byte of memory space and range from -128 to 127 or 0 to 255.
Boolean: The Boolean data type is used to store Boolean or logical values. A Boolean variable can store true or false. The keyword used for Boolean data type is bool.
Floating Point: The floating point data type is used to store single-precision floating-point values or decimal values. The keyword used for floating-point data type is float. Float variables typically require 4 bytes of memory space.
Double Floating Point: The double floating point data type is used to store double-precision floating-point values or decimal values. The keyword used for the double floating-point data type is double. Double variables typically require 8 bytes of memory space.
Void: Void means without any value. A void data type represents a valueless entity. A void data type is used for a function that does not return a value.
Wide Character: Wide character data type is also a character data type but this data type has a larger size than the normal 8-bit data type. Represented by wchar_t. It is usually 2 or 4 bytes long.
sizeof() operator: The sizeof() operator is used to find the number of bytes occupied by a variable/data type in computer memory.
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