C# 2008 Integer Variable Types

Each variable has a fixed type in C#, and integer (int) variable types are limited to whole numbers. C# has several other integer variable types, shown in this chart:

Type	Size (bytes)	Range	In Use
sbyte	1	-128 to 127	sbyte sb = -12;
byte	1	0 to 255	byte b = 12;
short	2	-32,768 to 32,767	short sn = -123;
ushort	2	0 to 65,535	ushort usn = 123;
int	4	-2,147,483,648 to 2,147,483,647	int n = 123;
uint	4	0 to 4,294,967,295	uint un = 123U;
long	8	-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 - “a whole lot”	long l = 123L;
ulong	8	0 to 18,446,744,073,709,551,615	long ul = 123UL;

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Source:http://www.dummies.com/how-to/content/c-2008-integer-variable-types.html