Threading vs Parallelism, how do they differ?

Question

What is the difference between threading and parallelism?

Which one has advantage over the other?

Answer 1

If we think CPU as a company and threads as its workers then, it help us to understand threading and parallelism more easily.

Like a company have many workers, the CPU also have many threads.

Also there may be more than one company and therefore there may be more than one CPU's.

Therefore when workers(threads) work in a company(CPU), it is called threading.

And when two or more companies(CPU) work independently or together, it is called parallelism.