The history of computer hardware

Reading Wired sometimes render some interesting things; like this one - The history of PC hardware. Fascinating stuff! And, it wasn't that long ago. I actually came across one those early mobile computers, with a detachable keyboard.

Further, I am searching the Internet for articles and pictures on the early versions of the AXE-telephone system, here is another story. I used work with it during the 80:s and 90:s. In the beginning the so called man-machine interface consisted of a number of teletype printer with paper. There could also be VT terminals sometimes. Anybody who could share any knowledge on where to find this stuff?