Mission Control
Formerly known as Spaces, Mission Control allows a user to do the following:
⌃ ctrl+↑ upview all open application windows.⌃ ctrl+↓ downview all open application windows of a specific application.⌘ cmd+F3 Mission Controlhide all application windows and show the desktop.⌃ ctrl+← left/→ rightmanage application windows across multiple virtual desktops.- manage application windows across multiple monitors.