+------------------+
       |  TEXT            |
       |  - program       |
       |  instructions in |
       |  machine code    |
       |                  |
       +------------------+
       |  DATA            |     (values stored in executable file)
       |  - initialized   |
       |    variables     |
       | ---------------  |
       |  - uninitialized |
       |    variables     |   	(set uninitialized to 0 on loading)
       |                  |
       | ---------------  |
       |  - heap for      |
       |  dynamic         |
       |  allocation      |
   |   |                  |
   |   |                  |
   V   +------------------+

   .
   .
   .

   ^   +------------------+
   |   |  STACK           |
   |   |  - function      |
       |    activation    |
       |    records       |
       |  - local         |
       |    automatic     |
       |    variables     |
       +------------------+