I have at home Edsger Dijkstra’s source code for the operating system he wrote in 1965

There was a brilliant programmer at Digitek who had completely novel and now unknown ideas for software development; he never published anything

You absolute tease Donald. I would email him, but, y’know..

There are small number of historians of computing, and they can only write about so many topics.

There is no reason that over time more historians will write the kind of History that Knuth finds interesting. But at the moment this is not the fashion .

The other issue is the availability of data, and the expertise needed to evaluate it.

At the moment the histories are rather bland and essentially a list of events tied together. More pointed views are rarely heard.