In the old model of USB flash drives, they were mainly used as simple storage devices by which we could backup files via drag and drop and carry them between computers as needed. USB flash drives designed to U3 specifications, according to the company’s press kit, should not only be able to carry data, but also have a person’s favorite applications, personal preferences, passwords and settings stored on them. Software vendors accomplish this by designing special versions of their programs which are installed directly on the flash drive.
When a person plugs the drive into a USB port on a Windows 2000 or Windows XP machine, the programs can be launched directly onto that computer through a user-friendly interface called the U3 Launch pad. System files are only loaded when the applications are run and there is no mess left behind when the drive is removed.
