According to NSS, there are currently 363 students enrolled in the new Computing 1 and there is no higher version of the course this year. So, I assume this year, we have about 360 new students studying Comp Sci and Comp/Soft/Elec/Tele Eng in total.
Looking back in the glory days, there would...
I think you mean foundation, right? Go to the foundation website to have a look. If you are from Hong Kong, I suggest you visit the UNSW office in Wan Chai.
http://www.hongkong.unsw.edu.au/school/
http://www.ufy.unsw.edu.au
Good luck!