Mach is an example of microkernel ?

In microkernals communication takes place between user modules using message passing ?

Collects data for a specific event ?

A program in execuation calls...

Part of process that containing temporary data...

Process state that Instructions are being executed

System call creates new process

In IPC-Shared Memory the communication is under the control of the OS ?

In indirect communication links are established automatically ?

In direct communication a link may be associated with many processes ?

Message passing may be either blocking or non-blocking

Acts as conduit allowing two processes to communicate

Operation allows OS to protect itself

Process is a passive entity ?

Allows OS to run applications within other OSes

Provides virtualization services

OS a prgram that acts intermediary between a user and software ?