Question

What is System Call ? List any two System Calls for Memory Management, Process Management and Information Management.

Answer 1

System calls : System call provides the interface between process and the operating system. These calls are generally available as assembly language instructions.

List of system calls for memory management :

1. To allocate a chunk of memory to a process.

2. To free chunk of memory from a process.

List of system calls for information management :

1. Create a file

2. Create a directory

List of system calls for process management :

1. Read a process

2. Block a process