He didn't use computers much, other than for email and browsing the web. Most of his writing was composed by hand using a fountain pen. He did work on ALGOL 60 and it is believed that he approved of the language.
In college I was reading a lot of the EWDs (particularly his trip reports, some hilarious stuff there) and IIRC he didn't like C/C++ a lot and thought that functional programming has some promising ideas. This was in the later EWDs, I'd say 1150+.
There are some fun quotations of him about APL and Basic.
