The primary purpose of signals in Inter-Process Communication (IPC) is to notify processes about specific events or interrupts asynchronously.
- Signals serve as a mechanism for asynchronous communication between processes. They allow processes to receive notifications or signals from the operating system or other processes without actively waiting for direct communication.
- Signal interrupts can notify a process about hardware events (e.g., keyboard interrupts) or system events (e.g., timer interrupts).
- Signals play a role in process control and management within an operating system. For example: SIGKILL and SIGSTOP are signals used to forcefully terminate or suspend processes, respectively.