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The hardware of a computer is infrequently changed, in comparison with software and data, which are "soft" in the sense that they are readily created, modified or erased on the computer. 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. 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. 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. The iPod is a brand of portable media players designed and marketed by Apple Computer. It is in embedded systems in automobiles, microwave ovens, electrocardiograph machines, compact disc players, and other devices. The most recent version of iTunes has video organization features. Discontinued versions include two generations of the iPod mini and four generations of the full-sized iPod, all of which had monochrome screens (except for the iPod photo). 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"). Devices in the iPod family are designed around a central scroll wheel (except for the iPod photo). 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"). Devices in the iPod family are designed around a central scroll wheel (except for the iPod photo). 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"). Devices in the iPod family are designed around a central scroll wheel (except for the