Answer:
d. it can accept output
Explanation:
A computer in simple terms is often defined as any device that can accept data, process data, give out and store information. Any gadget that is programmable i.e able to use a set of instructions in this manner is adroitly termed a computer.
They range from simple programmable calculators to complex super-computer modules in aviation systems.
From the given options, it is not a necessity for a device to accept output before it can be tagged a computer.
It is the way they manipulate data to information that makes a computer what they are.