One way is to look at total revenue of IT/Software Industry at present and compare it with 1981. My guess is that even after adjusting for inflation it would be

One way is to look at total revenue of IT/Software Industry at present and compare it with 1981. My guess is that even after adjusting for inflation it would be more than 100 times growth. Many of the present great companies were not even formed and some had just formed. I started working in the mid 90s. Joined a company which had few 100 employees, when I left it had around 300 times more.