User's Manual

13
Chapter 1 Using mobile computer
1.2 MEMORY
The collected data ca n be sent ba ck to a host computer immediately over wireless data
connections, or st ored in memory ( SRAM) for a later upload. T he mobil e compu ter is
equipped with a calendar chip for accurate time/date logging. When the main battery is
removed or drained, the bac kup battery on the mai n b oard takes over to ret ain 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 l oss occ urs when bo th the mai n a nd back up batteries di scharge completely.
Therefore i t i s necessary to upl oad data a nd files before pu tting awa y 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 Di gital (SD) car d i s a fl ash memory data storage device. Hi gh capacity memory
card (microSDHC) is supported. R efer to Inserting Battery & Memory Card
fo r 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 N ew SD Card” w ill be display ed all owing u sers t o scan t he card for
memory check. If you don’t feel the need for an instant check on the memory, you
can select cancellation and perfor m the me mory check later thro ugh System
Menu. See
3.8 SD Card Menu
.