I fear a sad part of this slide show is that many of us remember and were part of it all.   Some of us  programmed these machines (I admit that I still have some of these pieces in my basement).  I was disappointed they did not show a "stinger tap." The picture of the Alto shows the first mouse – the Hawley Labs mechanical mouse (which I miss for its feel).   Check out the picture of the first Cisco router using Intel Multibus (with a Motorola 68k in it) looking so awkward.

http://www.eweek.com/networking/slideshows/ethernet-marks-40-years-linking-people-computers-in-a-wired-world/?kc=EWKNLEDP05242013A&dni=60148934&rni=24249067