The most recent version of iTunes has video organization features. Devices in the iPod family are designed around a central scroll wheel (except for the iPod shuffle) and provide a simple user interface. Firmware is a special type of software that rarely, if ever, needs to be changed and so is stored on hardware devices such as read-only memory (ROM) where it is not readily changed (and is therefore "firm" rather than just "soft"). The bundled software used for uploading music, photos and videos to the iPod is called iTunes. All three models were released in 2005. Discontinued versions include two generations of the full-sized iPod, all of which had monochrome screens (except for the iPod photo). The iPod is currently the world's best-selling digital audio player, and its worldwide mainstream adoption makes it one of the most popular consumer brands. Computer hardware is the physical part of a computer, including the digital circuitry, as distinguished from the computer software that executes within the hardware. Like many digital audio players, iPods can serve as.