Mainframe, MVS and zOS Discussion

THIS IS AN INTERVIEW QUESTION ASKED SOMETIME BACK.

1. What is the difference between section and paragraph.
2. How do you recognize the begining of the section.
3. how do you know, that the procedure ended.

Later, I understand that combination of paragraph is section but did not get the answer for other two question. Could you please help.

The beginning of a section specifies SECTION in the code.

The procedure has ended when a new paragraph or section is encountered or when there are no more sourcelines.

A SECTION may include multiple paragraphs. SECTION was originally provided to allow for overlays (where part of a program's executable code could be replaced by another part of the executable code when the first part no longer is being used), but this use has become obsolete as system memory has expanded from the minimal 8 KB (yes that was 8,192 bytes of memory -- TOTAL) for the original SYSTEM/360 back in 1964. The 360/30 I used in college in 1976 had 64 KB of memory, divided into three partitions of 32, 16, and 16 KB.

Thanks Robert and Dick.