Non-Volatile File System

Non-Volatile File System (NVFS) is a flash memory file system introduced in the release of Palm's latest Personal Digital Assistant handheld models Tungsten T5, Tungsten E2, Palm TX, Z22, Treo 650/700/680/755p, and Palm Centro.

Background

Overview of NVFS

The NVFS, as claimed by palmOne, is a file system designed to keep all information safe should the battery run out of power. Previous non-flash memory designs would lose all stored data in the event of a power loss. NVFS is a derivative of Flash Memory, which continually stores all data even when no power is applied. palmOne invented NVFS in response to complaints that a handheld's data was destroyed when the battery power ran out. In the past, it was necessary to keep the handheld continuously charged to avoid losing data, since all information was stored in volatile memory.

A similar feature has been adopted by PDAs running the Windows Mobile 5.0 operating system, and is named "Persistent Storage".

Architecture and specifications