what is the difference between process and Thread?

Thread is a part of process...

thread are the small(subpart) of a process. when we run multiple threading of program then it is known as multiithreading process. The typical difference is that threads (of the same process) run in a shared memory space, while processes run in separate memory spaces.

The differences between threads and processes · Threads will, by default, share memory, but processes by default do not share memory. · A thread cannot exist by itself, a process must start a thread. A process can start multiple threads in other words “threads are not independent like processes”. · Threads will share file descriptors, but among processes more file descriptors are not shared. · Changes to the main thread (cancellation, priority change and so on) may affect the behavior of the other threads of the process; changes to the parent process do not affect the child processes. · Threads will share file system context, but processes don't share file system context. · Threads will share signal handling, but processes don't share signal handling. to learn more about thread and processes please visit : http://www.c-sharpcorner.com/UploadFile/819f33/threads-vs-processes

thread are the small(subpart) of a process. when we run multiple threading of program then it is known as multiithreading process

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Both processes and threads are independent sequences of execution. The typical difference is that threads (of the same process) run in a shared memory space, while processes run in separate memory spaces. I'm not sure what "hardware" vs "software" threads might be referring to. Threads are an operating environment feature, rather than a CPU feature (though the CPU typically has operations that make threads efficient). Erlang uses the term "process" because it does not expose a shared-memory multiprogramming model. Calling them "threads" would imply that they have shared memory.

process is a program which gets memory allocated to it by operating system. It has a starting point which is start by main thread. Thread is responsible for executing small part of your program. it can run in parallels with other threads within a process. Thread can not exist without a process. It always exist within a process.

Process is a program in execution whereas thread is a separate path of execution in a program.

inside a process thread can exist... inside a thread cannot exist a process.