At Rice in the early 90s the department was "Electrical and Computer
Engineering" if my hazy memory serves.
The genealogy of Computer Science departments (and their curricula) (at least in the US)
is also weird and historically-contingent. Basically it seems to have been a tossup at
any given school whether it came out of the Electr[ical|onic] Engineering department, in
which case it was memories and logic gates and a bottom-up, hardware-focused curriculum,
or out of the Mathematics department, in which case it was algorithms and complexity
analysis and a software-focused curriculum.
Adam