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White paper Sony Ericsson P1
41 May 2007
Data storage
Sony Ericsson P1 is divided into two parts:
• A GSM phone part, having flash memory. This is
very similar to a conventional mobile phone.
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The RAM (Random Access Memory) is controlled
by the Symbian OS operating system and is not
used to store any user or program data. The RAM
is totally re-initialized when Sony Ericsson P1 is
started.
The available 256 MB flash memory is split into
approx. 95 MB for operating purposes and up to
approx. 160 MB for storage of user data, such as,
audio files, pictures, documents, additional
languages and settings such as the active theme.
Flash memory retains data even with no power
applied. Unlike some PDA devices, Sony Ericsson
P1 does not require a small 'memory backup'
battery. Data stored on Sony Ericsson P1 is
therefore not subject to loss due to such a battery
running down.
The first memory bank is used like a ROM. It stores
the Symbian (UIQ) operating system, the built-in
applications and some essential multimedia
information like a default ringtone. It also stores the
language files for UK English which is the default
language of the Standard Sony Ericsson P1.
Chinese models also have Chinese stored on the
ROM.
Note: The extensive MMI of Sony Ericsson P1
means that it is impractical to hold many languages
inside the phone, as is the case for some other
models.
Part of the flash memory provides a 'C:' drive of up
to approx. 160 MB capacity. This behaves just like
a normal disk drive. The folders can be viewed and
managed from the File manager application or from
a connected PC.
User storage
The user storage space (C: drive) is shared across
applications without any imposed restrictions,
apart from the whole space becoming full.
Unlike a PC, the user does not need to be aware of
the underlying filing system. Applications will
always store information automatically in the
appropriate folder, simplifying the management of
data. Third party applications may implement more
complex file management solutions where
required.
Additional storage space is available by using
memory cards. Sony Ericsson P1 is delivered with
a 512 MB Memory Stick Micro™ (M2™) memory
card. Memory cards of up to 4 GB capacity are
supported. Any number of memory cards may be
used for storage. See “Memory Stick Micro™
(M2™)” on page 37 for more information on how to
use memory cards when exchanging data with
other devices.
Depending on the application, data can be
beamed, mailed, uploaded to the Web, transferred
to a PC or moved to a memory card in order to
archive and create free user space on Sony
Ericsson P1. See “Synchronization and data
transfer” on page 42.
User storage configuration in the
new Sony Ericsson P1
Applications and information are placed in the
internal storage of Sony Ericsson P1 in the factory.
This provides sample demonstration, educational,
multimedia and fun content so that Sony Ericsson
P1 can be used directly out of the box. Much of this
can be deleted by the user in order to make the
space available for personal use.