In the Beginning was the Command Line: a short book by Neal Stephenson that’s available for download. it considers the evolution of operating systems over the years and is a great read for anyone who wants to know why computers are so damn hard to use and why that’s a good thing. or something. it’s free. read it.
Update: A pdf version is at https://github.com/danielmkarlsson/library/blob/master/Neal%20Stephenson%20-%20In%20the%20Beginning%20was%20the%20Command%20Line.pdf
