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en | 8 | DCU 220 | Operating DCU 220
Chapter 3
Operating DCU 220
This chapter provides information about the use of DCU 220.
If you are new to computers, reading this chapter will help you learn the operating basics. If
you are already a computer user, you may choose to read only the parts containing
information unique to DCU 220.
CAUTION:
Do not expose your skin to DCU 220 when operating it in a very hot or cold
environment.
DCU 220 can get uncomfortably warm when you use it in high temperatures. As a
safety precaution in such a circumstance, do not place DCU 220 on your lap or touch
it with your bare hands for extended periods of time. Prolonged body contact can
cause discomfort and potentially a burn.
Using the keyboard
Your keyboard has all the standard functions of a full-sized computer keyboard plus an Fn
key added for specific functions.
The standard functions of the keyboard can be further divided into four major categories:
Typewriter keys
Cursor-control keys
Numeric keys
Function keys
Typewriter keys
Typewriter keys are similar to the keys on a typewriter. Several keys are added such as the
Ctrl, Alt, Esc, and lock keys for special purposes.
The Control (Ctrl) / Alternate (Alt) key is normally used in combination with other keys for
program-specific functions. The Escape (Esc) key is usually used for stopping a process.
Examples are exiting a program and canceling a command. The function depends on the
program you are using.
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