The one effect of reducing the size and cost of computers was that they became accessible to the public. The correct option among all the options that are given in the question is the second option.
It was easier for people to buy the computers for their personal use.
Step-by-step explanation:
Computer technology has encouraged to improve and increase every industry that you can think of all crosswise the world. By reducing the size and cost of the computers they became more common and easily accessible to the public. even ordinary people can buy it and accommodate it.