Texas Instruments 4000M - Manual (Page 97)

hard disk, and floppy drive. This mode overrides other
standby/suspend modes.
You also can use this mode to transport the computer short
distances without turning it off.
The computer instantly resumes normal operation when
you open the cover. All operations continue where left off
when suspended; however, time-dependent tasks may have
lost time, and tasks dependent on device input/output may
have lost data that overflowed buffers.
You may want to avoid this mode with tasks that depend on
real time, such as scheduling applications with audible or
visual reminders and communication tasks that depend on
input/output.
Manual Standby Mode
Pressing STANDBY puts the computer into standby mode,
which turns off the
LCD and both disk drives, suspends all
tasks, and activates the orange light on the PWR indicator.
Use this mode when you want to leave the computer for
some time and do not want to turn off or reboot the
computer.
This mode saves about as much battery power as
cover-closed mode.
To resume normal operation, press STANDBY again. The
computer displays the data in effect when it entered
standby mode and resumes all tasks. This mode also is
useful for transporting the computer for short distances.
Auto-Suspend Mode
In this mode the system suspends all tasks and turns off
the
LCD . The disk drives are controlled by the Hard Disk
Timeout parameter in Setup, and the system services task
interrupts as needed. The PWR indicator turns orange in
Optimizing Battery Operation
5-4 Power-Saving Utilities