
Eagle 250 Owner's Manual, Revision 01
Chapter 5 - About AMOS
As we mentioned in Chapter 1, your Eagle 250 computer uses the Alpha Micro Operating System,
AMOS. AMOS lets the various pieces of hardware in the computer talk to each other, interprets
commands you type, reads information from and writes it to the disk drives, and more. This chapter talks
about some of the basic concepts of AMOS and describes some of its commonly used commands and
procedures. It covers:
•
Using your terminal keyboard and correcting typing mistakes
•
Logging on to the computer
•
Adding new user names
•
How AMOS stores information on the disk
•
Adding new disk accounts
Depending on the way your application works and how your computer is set up, you may not
need to know much of this information. Some applications completely take over all interactions
with AMOS; rather than using any of the commands or keystrokes covered in this chapter, you
may make choices inside your application to perform the same functions. If you’ve received
specific instructions from your dealer about any of these topics—such as “To see a list of files,
use option 2 from the menu”—follow those instructions rather than the ones in this chapter.
THE TERMINAL KEYBOARD
The first step in communicating with AMOS is to be able to type your instructions on your keyboard.
Besides the character keys, it has some extra keys with special functions. Take a moment to look at your
keyboard so you can easily locate these keys later:
Key
Description
ENTER
ENTER
(sometimes labeled
RETURN
or with an arrow that curves to the left) is the
carriage return key.
ENTER
tells the computer you are ending a line or field and
want to begin a new one.
The computer does not normally process an instruction from you until you press
ENTER
to let it know you are finished with that line.
RUBOUT
RUBOUT
is the deletion key; it backspaces and deletes. It may also be labeled
RUB
,
DEL
, or
BACKSPACE
.
If you make a mistake while typing an instruction to AMOS, you can erase it using
the
RUBOUT
key.