How is parallel computing different from serial computing?

Question :

How is parallel computing different from serial computing?

Serial Computing: A processing in which one task is completed at a time and all the tasks are run by the processor in a sequence. In real time example, people standing in a queue and waiting for a railway ticket. In this case, one person can get a ticket at a time. Suppose there are two queues of people and one cashier is handling both the queues then one person can get a ticket at a time from both queues. Similarly, processor get lists of tasks and each task is completed at a time and all other tasks wait till the first one completes. This type of processing is also known as sequential processing.

Parallel Computing: A type of processing in which multiple tasks are completed at a time by different processors. Note that in parallel processing there is more than one processor involved. In real time example, there are multiple queues of people standing to get railway tickets. In this case, each queue is handled by multiple people, so multiple people will get tickets at a time. Similarly, in the operating system, there are multiple queues of tasks and multiple tasks are completed by different processors at a time.