Developers guide
Chapter 1: Introduction
Resetting Psion Teklogix Computers
6 Psion Teklogix Mobile Devices SDK Developers Guide
Table 1.1 shows the availability of the different operating systems on the various Psion Teklogix
computer devices.
1.5 Resetting Psion Teklogix Computers
This section describes the different methods and effects of resetting Psion Teklogix computers.
1.5.1 Reset Types and Effects
Suspend
The most common form of computer reset is the suspend state, which may occur automatically
after a period of inactivity, or when the battery power reserve drops below a specified threshold,
and is also typically what occurs when the user manually powers down the computer.
In suspend mode, a computer’s display, keyboard and peripherals are powered down. The operat-
ing system and any running applications are maintained in their current state, until the power
source depletes. The user can “wake” or “resume” the computer by powering it on again. This
process is known as a “suspend/resume cycle”.
Warm Reset and Cold Reset
There are two primary types of reset available on a Psion Teklogix computer, referred to as warm
reset and cold reset procedures. The specific actions taken during the reset depend on the operat-
ing system, but in general the warm reset is a simple reboot of the operating system and the cold
reset is a complete reset of the device at the hardware level.
Windows CE Operating Systems
When you perform a warm reset on a Psion Teklogix computer running Windows CE, the operat-
ing system restarts without clearing the object store memory where the file system resides.
Registry settings, installed programs and any data files are preserved. Any open applications will
be closed and any unsaved data will be lost.
A cold reset clears the object store memory and restarts the operating system. Any registry setting
changes are maintained, but all installed programs and data files not located on permanent
memory storage media such as the “Flash Disk” partition or an SD card, will be lost.
Table 1.1 Availability Of Windows Operating Systems
Windows Embedded
CE 5.0
Windows Mobile 5.0
Windows Mobile 6
Classic & Professional
7530 G2 Yes No No
7535 G2 Yes No No
8515 Yes No No
8525 G2 Yes No No
8530 G2 Yes No No
Ikôn Yes No Yes
NEO Yes No No
WORKABOUTPRO G1 No Yes No
WORKABOUTPRO G2 Yes No Yes