C - calloc() v. malloc()

Please explain the significance of this statement,

Another
difference between the malloc() and

calloc() functions is that the memory
allocated by malloc( ) function
contains garbage values, while memory
allocated by calloc( ) function
contains all zeros.

Source ('C' Programming, Salim Y. Amdani)

Thanks

Answer

From http://wiki.answers.com/Q/Is_it_better_to_use_malloc_or_calloc_to_allocate_memory

malloc() is faster, since calloc() initializes the allocated memory to contain all zeros. Since you typically would want to use and initialize the memory yourself, this additional benefit of calloc() may not be necessary.