Keyboard
Tab
The Tab key works like the tab key on a regular typewriter. Pressing the Shift key with the Tab key allows
you to backtab.
Backspace ( ←← )
The ← (Backspace) key moves the cursor to the left one space at a time, erasing the character to the left of
the cursor.
Ctrl
There are two identical Ctrl (Control) keys. The Ctrl key changes the function of another key when the two
are pressed at the same time. For example, under MS-DOS, pressing the Pause key while holding down Ctrl
sends a Break to stop the current program execution.
Alt
Like the Ctrl key, the two identical Alt (Alternate) keys give an alternate function to another key.
Alt Gr
On European keyboards, the Alt Gr (Alternate Graphics) key is located to the right of the Spacebar. The key
is used to enter the characters printed on the lower right of keytops. On other keyboards, a second Alt key is
located in this position.
Fn
The Fn (Function) key is used to access numbers, characters, or functions printed in blue on the front of the
keys. See Appendix G for keyboard layouts using the Fn key.
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