According to some news site its the 25th birthday of
the computer virus. Or not.
While most of the scientists and malware analysts know
that Fred Cohen did one of the first virus research in 1984,
it is a little known fact that in February 1980 a Diploma Thesis
at the University of Dortmund already discussed self replicating programs (in german). The 80's must have been such a great time. :-)
If you are interested, I also discussed some virus related issues
for UNIX in 2009 here.