I think it's rather common, even nowadays. I'm in computer engineering and not CS, but I've had many exams where I had to write C, C++, Java or Matlab on paper (introductory classes, system programming, OOP...). I've seen this posted before as well.

Now, the Pascal bit is probably becoming rarer :)

Eh, yeah. The end of semester exams were always on paper. Policy or something. Can't say I much enjoyed drawing UML or writing Java and C++ on paper. The worst was the digital image processing, where we did get to do it in the computer labs (basically, transforming images in matlab, usually fft -> masking, multiplication or some other simple operations -> ifft), but had to sketch the results on paper...

This was only couple of years ago! Ugh.

I've just completed my (non-CS) degree, and for my second year exams (2008!), we had to write C# on paper.