And a thread is a light weight process. Threads are light weight because threads share the same resources – same data (program text, heap memory and files). Each thread has its own memory stack.
Benefits of using Threads
- Light weight : As threads share same resources
- Performance : Threads can execute in parallel on multiple processors
- Thread Management vs Process Management: Sharing the same memory space and data among the threads makes it easier to share resources and things like context switching
- Requires synchronization among threads otherwise will lead to inconsistency of the system