The Learning Ladder Computer Basics Module

Using the Keyboard (continued)

Function keys

Across the top of most keyboards, there is a row of keys called function keys. These are special keys that do different kinds of special tasks. Not all keyboard function keys act in the same way.

On computers running Microsoft Windows, for example, the "F1" key usually brings up a "help" function of some sort. On a Macintosh computer, "F1" might be mapped to a function that dims the brightness of the screen. Some computers will even allow you to customize the function keys for your own purposes.

Modifier keys

Modifier keys are keys that are used together with other keys, and that change their behavior.

The shift key is one that you use a lot. If you hold down the shift key and type a letter, you get the capital version of that letter. So the shift key is said to modify the key you press it with, because it changes what happens when you press it.

Another modifier key that is only found on computer keyboards is the control key, sometimes shortened to "ctrl". Like shift, the control key is held down while pressing another key; however, it is not used for typing. Like the function keys, control is usually used to trigger a shortcut or command. For example, on computers running Windows, control-C ("C" pressed with the control key held down) may be used to do the "copy" command, and control-V might be "paste".

Finally, Windows computers usually have an alt (for "alternate") modifier key as well, and that is also used with other keys for commands and shortcuts. Macintosh systems have a command key that is used in much the same way, and an option key that is used to help type accented letters (like "é") and other special symbols (like "¢").

Congratulations! You've learned the basics of using your computer's keyboard and mouse. Next, we'll talk about running programs.

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