Do Macs get viruses?

You need to be able to find your Mac's ip address.

The ip gets allocated by the DHCP server

OS X is based on Unix

Check out how to get into the terminal and practise the commands given in this little tutorial.

Alert Sounds

You can change the alert sound and control volumes by using the Sound option in Preferences.

Get to know QuickTime. It's on all Macs

QuickTime is Apples video recording and playing suite. The following is just a little test video of some kids swimming.

New features on the MacBook

Check out this new MacBook here . Just one port.

System preferences

You cab change most of the system options in OS X by invoking System Preferences.

Get to know the preference possibilities.  A good site to check out all the above icons is here.