Question

Can anyone explain , in the concept of segmentation . let the base address of a particular segment is 1900 and the limit of the segment is 400(i.e., size limit). Exactly what does it represent at the address 1900. Is it a page or group of pages or words

Answer 1

Segmentation in OS means variable size partition of main memory. 

These partitions are not predefined.

So, Segment table is there to define the starting address of the table → (Base Address) and

limit is the size of the segment.

If base address is 1900 and limit is 400 this means:

cell no.  Address

1→        1900

2→        1901

3→        1902

.                 .

.                 .

.                 .

400→     2299 (Segment end)