What is iPod Classic

The iPod Classic (trademarked, marketed, and stylized as iPod classic and known before its sixth generation as simply iPod) is a portable media player marketed by Apple Inc. To date, there have been six generations of the iPod Classic, as well as a spin-off (the iPod Photo) that was later re-integrated into the main Classic line. All generations use a 1.8-inch hard drive for storage.

The "Classic" retronym was introduced with the introduction of the sixth-generation iPod Classic on 5 September 2007; prior to this, an iPod Classic was simply referred to as an iPod.

On June 28, 2005, the iPod Photo was merged into the monochrome iPod line. The 30 GB model was dropped, and the 20 GB monochrome iPod received a color screen. The price for the 60 GB model was also dropped to US$399.

The iPod's operating system is stored on its dedicated storage medium. An additional NOR flash ROM chip (either 1 MB or 512 KB) contains a bootloader program that tells the device to load its OS from the storage medium. Each iPod also has 32 MB of RAM, although the 60 and 80 GB fifth generation, and the sixth generation models have 64 MB. A portion of the RAM is used to hold the iPod OS loaded from firmware, but the majority of it serves to cache songs from the storage medium. For example, an iPod could spin its hard disk up once and copy approximately 30 MB of upcoming songs into RAM, thus saving power by not requiring the drive to spin up for each song. Rockbox and iPodLinux offer open-source alternatives to the standard firmware and operating system, respectively. However, at the current time these are both unavailable for use with the 6th generation iPod Classic due to encryption used on the official firmware.

In March 2002, Apple added limited PDA-like functionality: text files can be displayed, while contacts and schedules can be viewed and synchronized with the host computer. Some built-in games are available, including Brick (a clone of Breakout), Parachute, Solitaire, and Music Quiz. A firmware update released in September 2006 brought some extra features to fifth generation iPods including adjustable screen brightness, gapless playback, and downloadable games (available for purchase from the iTunes Store).