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Chapter 1
Using mobile computer
1.2 MEMORY
The collected data can be sent back to a host computer immediately over wireless data
connections, or stored in memory (SRAM) for a later upload. The mobile computer is
equipped with a calendar chip for accurate time/date logging. When the main battery is
removed or drained, the backup battery on the main board takes over to retain the
contents of SRAM and keep the real-time clock and calendar running. When fully charged,
it keeps said jobs up for at least 25 days.
If you want to put away the mobile computer for a couple of days, you should be aware
that data loss occurs when both the main and backup batteries discharge completely.
Therefore it is necessary to upload data and files before putting away the mobile
computer!
1.2.1 READ-ONLY MEMORY (ROM)
8 megabytes flash memory for storing core, OS, application programs, fonts, etc.
1.2.2 RANDOM-ACCESS MEMORY (RAM)
Options include 4 or 16 megabytes SRAM for storing data. Its contents will be retained by
the backup battery.
1.2.3 SD CARD
Secure Digital (SD) card is a flash memory data storage device. High capacity memory
card (microSDHC) is supported. Refer to
Inserting Battery & Memory Card for how to
insert the microSD or microSDHC card. For more details, refer to
1.8 SD Card.
Note: (1) When SD card is present, the card icon will appear on the screen and flash
while being accessed.
(2) For an SD card that has never been used on the mobile computer, a message
like “Found New SD Card” will be displayed allowing users to scan the card for
memory check. If you don’t feel the need for an instant check on the memory, you
can select cancellation and perform the memory check later through System
Menu. See
3.8 SD Card Menu.
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