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the variables are stored like..
auto - stack
static - data segment
register - cpu registers
extern - data segment

also memory we allocate dynalically using malloc etc is created using heap.
and out program is stored into code segment..
..
hope it will help :)

there are only two types of memory.
one is heap(dynamicallay, global etc) and second is stack(local).
it depends where the variable is declared.

in BSS->un-initialized static variable
DATA-> initialized static variable

Well in C and C++ there is nothing like un-initialized static variables.. All the static-variables are initialized to 0 by default(in case we dont explicitly initialize it).. So they are always stored in the data segment..

Nishant is correct.
There are two types of Data Segments

1. Uninitialized data segment(block started by symbol -bss). Whenever you declare a static variable or global variable, and do not initialize it, they are automatically initialized to 0 or NULL and stored here

2. Initialized Data Segment - All static or global variables that you initialize are stored here

Someone said "extern - data segment" which is sort of incorrect. Actually, for extern variables memory is not allocated at that time ( Assuming that it would be allocated some where else where the object is actually defined ). That would be a global object in general ( although I couldn't think of any other alternative, I won't commit on it ). Thats the reason why that particular object will go to data segment( if initialized ) or bss (if uninitialized ).