Help please im not a good computer science person

When determining the classification of data, which one of the following is the most important consideration? a. processing systemb. valuec. storage mediad. accessibility

The fourth generation of computers emerged between 1970s and 1980s. which technological advancement brought about this generation of computers? which computer architecture was used most in this generation?

List a few alternative options and input and output over the standerd keyboard and monitor. explain their functioning in details.