Casio IT-2000W - Manual (Page 22)

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System Menu Boot Process
Press the RESET switch to set the drive C as the current drive, and load MS-DOS from that
drive. As a result, the System Menu that includes the maintenance program will be initiated
(refer to “System Menu Boot Process” on this page).


Resume Process
This process restores the conditions that existed before the power was most recently turned off.
Any application program that was running at that point in time can be continued.
The contents of the above listed processes will be described in the following sections.
Application Boot Process
The application boot process is used to initiate application programs that have been installed in the
system by the user. The main system will search for CONFIG.SYS and AUTOEXEC.BAT files
according to the priority given to each of the following drive Gs prior to booting MS-DOS.
The system assigns the first drive on which they are found as the current drive, and boots MS-DOS
from it. Consequently, if the CONFIG.SYS and AUTOEXEC.BAT files created by the user are
located on one drive, MS-DOS will be booted from the drive assigned as the current drive. Under
factory defaults it is apparent that the CONFIG.SYS and AUTOEXEC.BAT files created by the
user cannot be found. If this occurs, therefore, the CONFIG.SYS and AUTOEXEC.BAT files
located in drive C: are selected and the System Menu will be initiated.
Priority of the drives:
If the F-ROM drive is installed
[Card drive (F:)] -> [RAM drive (A:)] -> [F-ROM drive (D:)] -> [Basic drive (C:)]
If the F-ROM drive is not installed
[Card drive (E:)] -> [RAM drive (A:)] -> [Basic drive (C:)]
Note:
The RAM disk (A:) is valid for use only if the setup is made in the System Menu.
System Menu Boot Process
The System Menu boot process is used to initiate the System Menu, which is nothing but a
maintenance program for this terminal system. The System Menu boot process will be executed only
if the RESET switch at the rear of the main unit is pressed.
If, in addition, a power OFF factor is encountered during the execution of the System Menu, the next
boot process will be the application boot process.