lawman - 9:31 pm on Nov 21, 2012 (gmt 0)

This is the valve reference:

"The restoration was quite a challenge requiring work with components like valves, relays, and paper tape readers that are rarely seen these days and are certainly not found in modern computers," [emphasis supplied]

I was just going to ask if it is chock full of vacuum tubes, don't know if that's what lawman is referring to or not

Yes.

[added]OK, looked it up. In US they are called vacuum tubes and in the UK they are called valves.[/added]