11
Chapter 1
Using 8200 Mobile Computer
1.2 MEMORY
The collected data can be sent back to a host computer immediately over wireless
networks, or stored in memory (SRAM) and upload later. 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 is to retain the contents of
SRAM and maintain the running of real-time clock and calendar for at least 25 days, on
condition that the backup battery has already been fully charged.
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, font, etc.
1.2.2 RANDOM-ACCESS MEMORY (RAM)
Options include 4 or 8 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 8200, a message like “Found New
SD Card” will be displayed allowing users to scan the card for memory check. If
the action is canceled then, memory check can still be performed via System
Menu —
3.8 SD Card Menu.
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