On Vista it is just called "Computer".
You can add it to your Desktop by going to Control Panel->Appearance and
Personalization->Personalization->Change Desktop Icons.
Also, if Computer isn't on your Start Menu, you can add it to your Start
Menu by going to Control Panel->Appearance and Personalization->Taskbar
and Start Menu. Click on the Start Menu tab, then click the "Customize..."
button. You can choose to display Computer as a link or menu.
-Anton