In the 1960s and 1970s, research funding by the U.S. government and some universities led to revolutionary advances in n

[answerhappygod]

In the 1960s and 1970s, research funding by the U.S. government
and some universities led to revolutionary advances in network
computing. These advances in communication and network technology
remained largely isolated to governmental and academic use. By the
mid-to-late 1990s, the Internet began to be widely adopted with
massive increases in productivity (which journalists dubbed the
"new economy"). Explain what happened referring to the AD/AS model.
(two paragraphs)