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Whether you're writing a letter or entering numerical data, your keyboard is the main way to enter information into your computer. But did you know you can also use your keyboard to control your computer? Learning just a few simple keyboard commands (instructions to your computer) can help you work more efficiently. This article covers the basics of keyboard operation and gets you started with keyboard commands.
The keys on your keyboard can be divided into several groups based on function:
Typing (alphanumeric) keys. These keys include the same letter, number, punctuation, and symbol keys found on a traditional typewriter.
Function keys. The function keys are used to perform specific tasks. They are labeled as F1, F2, F3, and so on, up to F12. The functionality of these keys differs from program to program.
Navigation keys. These keys are used for moving around in documents or webpages and editing text. They include the arrow keys, HOME, END, PAGE UP, PAGE DOWN, DELETE, and INSERT.
Numeric keypad. The numeric keypad is handy for entering numbers quickly. The keys are grouped together in a block like a conventional calculator or adding machine.
The following illustration shows how these keys are arranged on a typical keyboard. Your keyboard layout may differ.
In addition to letters, numerals, punctuation marks, and symbols, the typing keys also include SHIFT, CAPS LOCK, the TAB key, ENTER, the SPACEBAR, and BACKSPACE.
Keyboard shortcuts are ways to perform actions by using your keyboard. They're called shortcuts because they help you work faster. In fact, almost any action or command you can perform with a mouse can be performed faster using one or more keys on your keyboard.
In Help topics, a plus sign (+) between two or more keys indicates that those keys should be pressed in combination. For example, CTRL+A means to press and hold CTRL and then press A. CTRL+SHIFT+A means to press and hold CTRL and SHIFT and then press A.
You can do things in most programs by using the keyboard. To see which commands have keyboard shortcuts, open a menu. The shortcuts (if available) are shown next to the menu items.
You can open menus and choose commands and other options using your keyboard. When you press ALT in a program with menus, one letter in each of the menu names becomes underlined. Press an underlined letter to open the corresponding menu. Press the underlined letter in a menu item to choose that command.
This trick works in dialog boxes too. Whenever you see an underlined letter attached to an option in a dialog box, it means you can press ALT plus that letter to choose that option.
The following table lists some of the most useful keyboard shortcuts.
Open the Start menu
Switch between open programs or windows
Close the active item, or exit the active program
Save the current file or document (works in most programs)
Copy the selected item
Cut the selected item
Paste the selected item
Undo an action
Select all items in a document or window
Display Help for a program or Windows
Display Windows Help and Support
Cancel the current task
Open a menu of commands related to a selection in a program. Equivalent to right-clicking the selection.
The navigation keys allow you to move the cursor, move around in documents and webpages, and edit text. The following table lists some common functions of these keys.
The numeric keypad arranges the numerals 0 though 9, the arithmetic operators + (addition), - (subtraction), * (multiplication), and / (division), and the decimal point as they would appear on a calculator or adding machine. These characters are duplicated elsewhere on the keyboard, of course, but the keypad arrangement allows you to rapidly enter numerical data or mathematical operations with one hand.
To use the numeric keypad to enter numbers, press NUM LOCK. Most keyboards have a light that indicates whether NUM LOCK is on or off. When NUM LOCK is off, the numeric keypad functions as a second set of navigation keys (these functions are printed on the keys next to the numerals or symbols).
You can use your numeric keypad to perform simple calculations with Calculator.
Open Calculator by clicking the Start button , clicking All Programs, clicking Accessories, and then clicking Calculator.
Check your keyboard light to see if NUM LOCK is on. If it isn't, press NUM LOCK.
Using the numeric keypad, type the first number in the calculation.
On the keypad, type + to add, - to subtract, * to multiply, or / to divide.
Type the next number in the calculation.
Press ENTER to complete the calculation.
So far, we've discussed almost every key you're likely to use. But for the truly inquisitive, let's explore the three most mysterious keys on the keyboard: PRINT SCREEN, SCROLL LOCK, and PAUSE/BREAK.
A long time ago, this key actually did what it says—it sent the current screen of text to your printer. Nowadays, pressing PRINT SCREEN captures an image of your entire screen (a "screen shot") and copies it to the Clipboard in your computer's memory. From there you can paste it (CTRL+V) into Microsoft Paint or another program and, if you want, print it from that program.
More obscure is SYS RQ, which shares the key with PRINT SCREEN on some keyboards. Historically, SYS RQ was designed to be a "system request," but this command is not enabled in Windows.
Press ALT+PRINT SCREEN to capture an image of just the active window, instead of the entire screen.
In most programs, pressing SCROLL LOCK has no effect. In a few programs, pressing SCROLL LOCK changes the behavior of the arrow keys and the PAGE UP and PAGE DOWN keys; pressing these keys causes the document to scroll without changing the position of the cursor or selection. Your keyboard might have a light indicating whether SCROLL LOCK is on.
This key is rarely used. In some older programs, pressing this key pauses the program or, in combination with CTRL, stops it from running.
Some modern keyboards come with "hot keys" or buttons that give you quick, one-press access to programs, files, or commands. Other models have volume controls, scroll wheels, zoom wheels, and other gadgets. For details about these features, check the information that came with your keyboard or computer, or go to the manufacturer's website.
Using your keyboard properly can help avoid soreness or injury to your wrists, hands, and arms, particularly if you use your computer for long periods of time. Here are some tips to help you avoid problems:
Place your keyboard at elbow level. Your upper arms should be relaxed at your sides.
Center your keyboard in front of you. If your keyboard has a numeric keypad, you can use the spacebar as the centering point.
Type with your hands and wrists floating above the keyboard, so that you can use your whole arm to reach for distant keys instead of stretching your fingers.
Avoid resting your palms or wrists on any type of surface while typing. If your keyboard has a palm rest, use it only during breaks from typing.
While typing, use a light touch and keep your wrists straight.
When you're not typing, relax your arms and hands.
Take short breaks from computer use every 15 to 20 minutes.