The iPod

Designed and marketed by Apple Inc. The iPod is a popular brand of portable media player . 23 October 2001 was launched . IPod Apple's "digital hub " category came from . The name iPod is a freelance copywriter, Vinnie Chieco, was proposed by the first iPod kiosks had been demonstrated to the public in March 1998 . IPod MP 3, AAC / M4A, Protected AAC, AIFF, WAV, Audible (Audible) audiobook , and Apple Lossless audio file formats , including rates. IPod Photo JPEG, BMP, GIF, TIFF, and PNG image file formats can display . Encoding techniques and data - with the additional restriction on rates MPEG-4 (H.264/MPEG-4 AVC) and QuickTime video formats, can also play . IPod software only for Mac OS (Mac OS) to work with . The iPod has been upgraded several times , and each significant revision is called a generation . Each model classic , nano , shuffle , only recent generations of the iPod Touch and Apple are refurbished units of previous generations . Apple announced record revenue of $ 9.6 billion and record net quarterly profit of $ 1.58 billion posted .