Non-PRO Not for points English to Spanish Tech/Engineering Computers (general) symbols and punctuation marks

I am looking for a glossary of the names of the symbols and punctuation marks commonly located on computer keyboards in Spanish and English. I need to be able to accurately interpret references to Internet addresses and to do so I need to know what these things are called in both English and Spanish. I don't know the name for some are even in my native English. Anybody have any useful reference they could point me to?