What is the difference between a 'thread' and a 'process'?
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Answer Posted / swaroopa
Process is a program in execution whereas thread is a
separate path of execution in a program. Process & Thread
share almost all datastructure except (thread has it's own
register & stack area). Process is a program under
execution,but thread is a light weight process which has
seperate way of execution.Threads are part of
process.Single process can contain number of threads at a
time.
A process is a collection of virtual memory space, code,
data, and system resources.
All thread with in a process share process
instruction,code & data segment,open file descriptor,signal
handler,userID and GroupID.
Thread has its own set of register including program
counter,stack pointer
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