Using your keyboard Whether youre 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. How the keys are organized 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. • Control keys. These keys are used alone or in combination with other keys to perform certain actions. The most frequently used control keys are CTRL, ALT, the Windows logo key , and ESC. • 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. How the keys are arranged on a keyboard Typing text Whenever you need to type something in a program, e mail message, or text box, youll see a blinking vertical line ( ). Thats the cursor, also called the insertion point. It shows where the text that you type will begin. You can move the cursor by clicking in the desired location with the mouse, or by using the navigation keys (see the Using navigation keys section of this article). 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. Key name How to use it SHIFT Press SHIFT in combination with a letter to type an uppercase letter. Press SHIFT in combination with another key to type the symbol shown on the upper part of that key. CAPS LOCK Press CAPS LOCK once to type all letters as uppercase. Press CAPS LOCK again to turn this function off. Your keyboard may have a light indicating whether CAPS LOCK is on. TAB Press the TAB key to move the cursor several spaces forward. You can also press the TAB key to move to the next text box on a form. ENTER Press ENTER to move the cursor to the beginning of the next line. In a dialog box, press ENTER to select the highlighted button. SPACEBAR Press the SPACEBAR to move the cursor one space forward. BACKSPACE Press BACKSPACE to delete the character before the cursor, or the selected text. Using keyboard shortcuts Keyboard shortcuts are ways to perform actions by using your keyboard. Theyre 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. Find program shortcuts 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. Keyboard shortcuts appear next to menu items Choose menus, commands, and options 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. Press ALT+F to open the File menu, then press P to choose the Print 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. Useful shortcuts The following table lists some of the most useful keyboard shortcuts. Press this To do this Windows logo key Open the Start menu ALT+TAB Switch between open programs or windows ALT+F4 Close the active item, or exit the active program CTRL+S Save the current file or document (works in most programs) CTRL+C Copy the selected item CTRL+X Cut the selected item CTRL+V Paste the selected item CTRL+Z Undo an action CTRL+A Select all items in a document or window F1 Display Help for a program or Windows Windows logo key +F1 Display Windows Help and Support ESC Cancel the current task Application key Open a menu of commands related to a selection in a program. Equivalent to right-clicking the selection. Using navigation keys 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. Press this To do this LEFT ARROW, RIGHT ARROW, UP ARROW, or DOWN ARROW Move the cursor or selection one space or line in the direction of the arrow, or scroll a webpage in the direction of the arrow HOME Move the cursor to the beginning of a line or move to the top of a webpage END Move the cursor to the end of a line or move to the bottom of a webpage CTRL+HOME Move to the top of a document CTRL+END Move to the bottom of a document PAGE UP Move the cursor or page up one screen PAGE DOWN Move the cursor or page down one screen DELETE Delete the character after the cursor, or the selected text; in Windows, delete the selected item and move it to the Recycle Bin INSERT Turn Insert mode off or on. When Insert mode is on, text that you type is inserted at the cursor. When Insert mode is off, text that you type replaces existing characters. Using the numeric keypad 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. Numeric keypad 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. Three odd keys So far, weve discussed almost every key youre likely to use. But for the truly inquisitive, lets explore the three most mysterious keys on the keyboard: PRINT SCREEN, SCROLL LOCK, and PAUSE/BREAK. PRINT SCREEN (or PRT SCN) 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 computers 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. Tip Press ALT+PRINT SCREEN to capture an image of just the active window, instead of the entire screen. SCROLL LOCK (or SCR LK) 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. PAUSE/BREAK This key is rarely used. In some older programs, pressing this key pauses the program or, in combination with CTRL, stops it from running. Other keys 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 manufacturers website. Tips for using your keyboard safely 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 youre not typing, relax your arms and hands. • Take short breaks from computer use every 15 to 20 minutes.
Posted on: Thu, 23 Oct 2014 04:46:19 +0000