Question

Why computers were invented? How they are helpful to man and mankind.​

Answer 1

Answer:

Just because

Explanation:

Answer 2

Answer:Even a moderate time-keeper is so useful that it commands a ready market. An adding machine is only attractive if it as accurate and cheap as a clerk.

It was clear that a clock accurate enough to allow the solution to the problem of finding longitude at sea would be, if not priceless, nearly so. A perfect adding machine would just be a machine for adding.

Part of the solution to making a good clock is to make the mechanism "do as little work as possible" and to protect it from the outside world. An adding machine must take its data from the outside world and return its results to the outside world. It cannot lead the pampered and lazy life of a clock.

Explanation: