A Thread and a Process

Question

Hi,
Ques What is differences between a Thread and a Process ?

Senthilkumar · Answer

Hi,
The major difference between threads and processes is  1.Threads share the address space of the process that  created it; processes have their own address.
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.

Jignesh Trivedi · Answer

hi,
Process is a programe in execution
Thread is a separate path of execution
Process is an thread under execution means every process runs with in a thread.
a process can have multiple thread.
Thread are not fully Isolated whereas Process are fully isolated from each other
Thread is a Execution instruction. Threads cannot live without a process.
hope this help.