In the 1980s, as programmers began packing more features
into PC software, they also developed ways for users to issue an ever-increasing number of commands. Software
packages came with long lists of commands, all of which
had to be entered at the keyboard. (This was before the
mouse came into common use.) As a result, the computer
keyboard rapidly became a valuable tool.
Programmers began devising keyboard shortcuts that
allow users to issue commands quickly by typing a short
combination of keystrokes. Keyboard shortcuts involve using
a modifier key (such as
ALT
or
CTRL
) along with one or more
alphanumeric or function keys. To print a document in many
applications, for example the user can press ctrl+p.
Function keys also became important The
F1
key, for example, became the universal way to access online help. IBM compatible computer keyboards originally had 10 function
keys; eventually the number of function keys was expanded
to 12.
Another common type of keyboard shortcut involves
pressing the
ALT
key to access a program's menu system.
When running any Windows program, you can press alt to
activate the menu bar, and then press a highlighted letter
in a menu's name to open that menu.
Still a keyboard can hold only so many keys, and the
lists of keyboard shortcuts became unmanageable. A single
program could use dozens of "
hotkeys” as these shortcuts
were called. If you used several programs, you had to learn
different shortcuts for each program. Finally, the
Common
User Access (
CUA) standard led to the standardization of
many commonly used hotkeys across different programs and
environments. With this standard for commonly used
hotkeys, users have fewer hotkeys to remember.
Despite such standards, pointing devices (such as the
mouse) came along none too soon for hotkey-weary computer users. Microsoft Windows and the Macintosh operating system gained popularity because of their easy-to-use,
mouse-oriented graphical interfaces. By operating the
mouse, users could make selections visually from menus and
dialog boxes. Emphasis rapidly began shifting away from
the keyboard to the screen; today, many users do not know
the purpose of their function keys!
Pointing
, however, can slow you down. As menus and dialog boxes become increasingly crowded, commands can be
hard to find and their locations can be as difficult to remember as keyboard shortcuts. Many computer users overcome these problems by using a combination of keyboard
shortcuts and a pointing device. You use one hand to issue
many basic shortcuts (such as
cntl+f
and ctrl+s
) or to
launch macros. A macro is a series of commands that a program memorizes for you.
Macros enable you to issue an entire set ot commands in just a few
keystrokes. Using these
techniques minimizes keystrokes and leaves a hand free to
use a pointing device.
The following table lists some of the shortcut keys available in
Microsoft Word.
Table. 1: Keyboard shortcuts
CTRL+B | Toggle bold character formatting on or
off for the selected or inserted text;
make letters bold or unbold. |
CTRL+I | Toggle italic character formatting on or
off for the selected or inserted text;
make letters italic. |
CTRL+U | Toggle underline character formatting
on or off for the selected or inserted
text; underline letters |
CTRL+C | Copy the selected text or object |
CTRL+V | Paste text or an object |
CTRL+Z | Undo the last action |
CTRL+Y | Redo the last action |
CTRL+X | Cut the selected text or object |
CTRL+SPACEBAR | Remove character formatting for the
selected text |
CTRL+O | Remove paragraph formatting for the
selected paragraph or paragraphs |
CTRL+SHIFT+< | Decrease font size for the selected or
inserted text |
CTRL+SHIFT+> | Increase font size for the selected or
inserted text |
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