I’ll broaden the discussion: 70’s minicomputers, Unix. 80’s microcomputers, Bill’s excellent adventures. 90’s SGI and Sun, Linux, Networks and 3D graphics, wor

I’ll broaden the discussion: 70’s minicomputers, Unix. 80’s microcomputers, Bill’s excellent adventures. 90’s SGI and Sun, Linux, Networks and 3D graphics, workstations. Or, 70’s diverse musical tastes: prog, pop, punk, disco, …. 80’s metal, 90’s alternative rock. Several were reactions to preceding genres, such as guitars as percussion instruments to almost out of the mix. Or, 70’s Vietnam ends, proxy wars continue, gas crisis and inflation. 80’s Reagan, us hegemony, small wars w/o proxy, greed is good. 90’s the wall came down, europe ascendant, China enters the world economy big time. Throw in bad hair and a whole lot of polyester.