The gap between those individuals in our society who are computer literate and have access to information resources like the Internet and those who do not is referred to as the

Digital divide

Explanation:

Digital divide is the gap between those who had access to the net over those who didn't have access to the internet. Internet became of much usage from around 20th century and became predominant in these 21st century but before the 20century, people used other methods to compute, like abacus and the rest. Internet has been a great aid to man as it's common with almost everyone today.

good question. i'll be looking into that. (this is a joke sir)

answer; lorenz;