Macintosh computers are also available there. The CS department utilizes a number of computer equipped classrooms. As staffing permits, the department tries to make these facilities available as labs when they are not in use for class. There are a number of other computer labs on campus that are available for student use, at least part of the time, too many for me to keep track of. I also try to send an email if I will miss class.
Email also makes virtual office hours possible.
I have more than one address. You can use any address you wish and you can register more than one address if you wish. Mail I sent will go to each of the addresses you specify. Be careful using a work address since some companies have policies against non-business use of email and email sent to or from your work account is not private. At the present time, removing a registered address can only be done manually.