Key
Purpose
Backspace
Enter
Caps Lock
Esc
Num Lock
Scroll Lock
Break
PrtSc
Home, End
PgUp. PgDn
Ins
Del
Moves the cursor back one space, deleting the
character to the left of the cursor.
Ends a line of keyboard input or executes a
command (may be called the Return key in some
application program manuals).
Changes the letter keys from lower- to uppercase;
changes back to lowercase when pressed again.
The numeric/symbol keys on the top row of the
keyboard are not affected.
Cancels the current command line or operation.
Changes the function of the keys on the numeric/
cursor keypad from numeric entry to cursor
positioning; changes back when pressed again.
Controls scrolling in some applications.
When pressed with the Ctrl key, sends a break
signal to the computer to terminate the current
operation.
When pressed with Shift. prints the screen
display on a dot-matrix printer.
Control cursor location.
Turns the insert function on and off.
Deletes the character marked by the cursor.
The
Num Lock,
Scroll Lock, and
Caps Lock
keys work as
toggles; press the key once to turn on a function and again to
turn it off. When the function is enabled, the corresponding
light on the top right comer of the keyboard is on. When the
function is disabled, the light is off.
Using Your Computer
2-3
