Unit 1 consists of 6 buildings or halls (http://www.housing.berkeley.edu/resliving/unit_1.html):
on Durant Ave side are Cheney, Christian, and Freeborn
on Channing Way side are Deutsch, Slotman, and Putnam. 
Front Desk is located directly behind Cheney and Christian, in the lower level.

The ISPST conference will be held in Deutsch Hall Main Lounge
(see map of Unit 1, Deutsch Hall)

Once you get to Unit 1, we will have signs pointing you to both the Front Desk and Deutsch Hall Main Lounge

Wireless will be available.
We can provide Usernames and Passwords onsite.