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User’s Manual 5-1
PORTÉGÉ M400
Chapter 5
The Keyboard
The computer’s keyboard layouts are compatible with a 101/102-key
enhanced keyboard. By pressing some keys in combination, all the 101/
102-key keyboard functions can be executed on the computer.
The number of keys on your keyboard depends on which country/region’s
keyboard layout your computer is configured with. Keyboards for numerous
languages are available.
There are six types of keys: typewriter keys, function keys, soft keys, Hot
keys, Windows special keys and keypad overlay.
Typewriter keys
The typewriter keys produce the upper- and lower-case letters, numbers,
punctuation marks, and special symbols that appear on the screen.
There are some differences, however, between using a typewriter and
using a computer keyboard:
■ Letters and numbers produced in computer text vary in width. Spaces,
which are created by a “space character,” may also vary depending on
line justification and other factors.
■ The lowercase l (el) and the number 1 (one) are not interchangeable on
computers as they are on a typewriter.
■ The uppercase O (oh) and the 0 (zero) are not interchangeable.
■ The Caps Lock function key locks only the alphabetic characters in
uppercase while the shift lock on a typewriter places all keys in the
shifted position.
■ The Shift keys, the Tab key, and the BkSp (backspace) key perform
the same function as their typewriter counterparts but also have special
computer functions.
Never remove the key caps on your keyboard. Doing so could cause
damage to the parts under the key caps.