Many thanks for the replies. Ira is absolutely correct: a preliminary look at the University's website showed that a new computer must be bought, their system requirements for Mac is OS 10.7 or later for one course, 10.8 or later for another course.
While you are there, and apologies if this is a stupid question, can a 10.6.8 iMac be upgraded? I'll supply tech specs if you need them. Many many thanks.
