User's Manual
PC-EPhone Customizing & Maintenance Page 3-13
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There are 3 types of memories in the PC-EPhone that you can use: RAM, IPSM, and
CF Memory Card.
(1) RAM
RAM is used as storage space where you can store data or files, and as program space.
In other words, you can either save data and files or install programs in RAM. RAM
memory is mainly used when running a program.
1) When running several programs at the same time, running may slow down due to
memory shortage, or when RAM space is being entirely used, your PC-EPhone may
not be able to carry out operations properly. Be sure to run only the programs that you
need.
2) Delete files and data that you do not need right away or store them in IPSM or CF
Card memory in order to secure sufficient RAM space needed in running programs.
(2) IPSM(Intel Persistent Storage Management)
IPSM, a non-volatile memory, performs the same role as the hard disk of the desktop
PC. As no damage is done to data stored in IPSM even in the event of power shortage
or a Hard Reset, you had better copy important data to IPSM and gain security.
(3) CF Memory Card
CF Memory Card is a device that performs the same functions as the floppy disk of a
desktop PC, thus the CF Memory Card can be used to store data when it is installed in
the CF Card slot of your PC-EPhone. And because a CF Memory Card can store data
permanently, you can use it to back up data from RAM to safely preserve it.
Since RAM is a volatile memory, all data stored in it is lost when there is no
power supply to the PC-EPhone (full drainage of Main & Backup Battery) and
when a Hard Reset is performed on the system. Consequently, you should
back up your data using Backup Utility from time to time in order to restore
lost data.
Saving and reading speed to and from IPSM’ s data is slower than those of
RAM. So don’ t install the execution programs in IPSM. Copy frequently used
data or data requiring quick speeds onto RAM.
Extend the quantity of program memory when it happens that PC-EPhone
runs too slow or malfunctioning and extend the quantity of storage memory
when spaces are needed for files or documents.