Explain about roll area-Dispatcher-ABAP-Processor

Question

Explain about roll area, Dispatcher, ABAP-Processor.

Answer 1

Roll area is nothing however memory assigned by work process. It contains the information required by R/3 about programs implementation such as value of variables.

Dispatcher: All the requests which come from presentation server will be directed first to dispatcher. Further dispatcher sends these requests to work process on FIFO (First in And First Out) basis.

Dispatcher obtains the request from client and allocates the request to one of work process.

Roll area: Each work process works in the particular memory that memory is recognized as Role Area, which comprises User context and session data.

ABAP- Processor: is an interpreter that can execute logic