Process vs Thread
| Process | Thread | |
|---|---|---|
| Definition | A process is an instance of program that is being executed | A thread is a subset of a process |
| Memory | Run in separate memory | Run in shared memory in the same process |
| Communication | Via inter-process communication | can communcation with the same process |
Memory
Multitasking
OS can have multiple processes run simultaneously
Multithreading
In any single process, multiple threads can run simultaneously.
Actually it is not truly simultaneous. It is done by switching between different thread in a process
Threads can truly be concurrent on a multiprocessor