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In computer science, a pointer is a programming language object that stores the memory address of another value located in computer memory. A pointer references a location in memory, and obtaining the value stored at that location is known as dereferencing the pointer. As an analogy, a page number in a book's index could be considered a pointer to the corresponding page; dereferencing such a pointer would be done by flipping to the page with the given page number and reading the text found on that page.

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 A pointer is a special variable in c language which holds the address of the other variable.

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A pointer is a variable that stores a memory address.Pointers are used to store the addresses of other variables or memory items. Pointers are very useful for another type of parameter passing, usually referred to as Pass By Address. Pointers are essential for dynamic memory allocation.

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In computer science, a pointer is a programming language object, whose value refers to (or "points to") another value stored elsewhere in the computer memory using its memory address. A pointer references a location in memory, and obtaining the value stored at that location is known as dereferencing the pointer. As an analogy, a page number in a book's index could be considered a pointer to the corresponding page; dereferencing such a pointer would be done by flipping to the page with the given page numbe

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A pointer is a variable which contains the address in memory of another variable. We can have a pointer to any variable type. The unary or monadic operator & gives the ``address of a variable''. The indirection or dereference operator * gives the ``contents of an object pointed to by a pointer``

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Pointer is a datatype which is used to store the address of a data or any other variables. Pointer may be different type depends on the address stored by them. If the pointer store the address of a int then its called integer pointer or if store a char then its called char pointer. 

The pointer syntax in c is

int a =12; int *ptr =&a; // means that pointer ptr store address of a.

Commonly * is used to create the pointers.