What is the difference between a process and a thread in computing concept?

سوالك حساس جدا واشكرك على سوالك .

على حد علمي ان العملية الثريد هو جزء من العملية فمن هنا يمكن القول ان العملية تحتوي على عدة ثريد وتقوم الثريد باداء وظيفة معينة فقط .

وايضا العملية تقوم بحجز عنوان معين داخل الذاكرة ولايمكن لعملية اخرى اخذ هذا الموقع او مشاركتة بينما مجموعة من الثريد يمكن ان تتشارك موقع واحد في الذاكرة . ولمزيد من التفاصيل .

1. Threads share the address space of the process that created it; processes have their own address space.
2. Threads have direct access to the data segment of its process; processes have their own copy of the data segment of the parent process.
3. Threads can directly communicate with other threads of its process; processes must use interprocess communication to communicate with sibling processes.
4. Threads have almost no overhead; processes have considerable overhead.
5. New threads are easily created; new processes require duplication of the parent process.
6. Threads can exercise considerable control over threads of the same process; processes can only exercise control over child processes.
7. Changes to the main thread (cancellation, priority change, etc.) may affect the behavior of the other threads of the process; changes to the parent process does not affect child processes

In simple terms, a process is a program in execution and can be made up of1 or more threads. Threads are basic segments of executing code.