Control keys
Not to be confused with the "CTRL keys", control keys are a section of keys on your keyboard that enable additional control over a document and the computer. Print Screen, Scroll Lock, Pause, Break, Insert, Home, Page Up, Delete, End, and Page down are all examples of control keys. In the below picture, is an example image of the Saitek Gamers' keyboard to help illustrate where the control keys are commonly located on the keyboard.
Also see: Ctrl, Keyboard, Keyboard definitions