The course is distributed over 5 issues.
Here are the links for each issue.
A great introduction with ample explanations.
Day X+4 months: Microsoft ships NT 5.0 for Intel.with a big media
event on TV. IBM begins to ship Debian 4.6 as the
standard OS on all machines from mainframe to PC
and announces the move on Slashdot.
— Christoph Lameter