Cell Phones... WHAT'S NEXT

 Whats Next?

ipod

iPod Family

 

  

iPod is a line of portable media player launched on October 23, 2001. The product line-up currently consists of the
*hard drive-based iPod Classic
*touchscreen iPod Touch
*compact iPod Nano
*ultra-compact iPod Shuffle.

     The iPod has come a long way since the introduction of the original 5GB model more than eight years ago. The timeline of subsequent iPod releases reads like a royal family tree, with some branches that have stayed true to the original iPod form (iPod Classic), some that have made evolutionary leaps (iPod Touch), and some that have become less popular (iPod Mini).   

CD's

"A Compact Disc (also known as a CD) is an optical disc used to store digital data. It was originally developed to store and playback sound recordings exclusively, but later expanded to encompass data storage (CD-ROM), write-once audio and data storage (CD-R), rewritable media (CD-RW), Video Compact Discs (VCD), Super Video Compact Discs (SVCD), PhotoCD, PictureCD, CD-i, and Enhanced CD. Audio CDs and audio CD players have been commercially available since October 1982.
Standard CDs have a diameter of 120 millimetres (4.7 in) and can hold up to 80 minutes of uncompressed audio (700 MB of data). The Mini CD has various diameters ranging from 60 to 80 millimetres (2.4 to 3.1 in); they are sometimes used for CD singles, storing up to 24 minutes of audio or delivering device drivers."

Compact Discs -source

Cassettes

  The Compact Cassette, often referred to as audio cassette, cassette tape, cassette, or simply tape, is a magentic tape sound recording format. Although designed originally for dictation, improvements in fidelity led the Compact Cassette to supplant the Stereo 8 track cartridge and reel-to-reel tape recording in most non-professional applications. Its uses ranged from portable audio to home recording to data storage for early micro computers. Between the early 1970s and the late 1990s, the cassette was one of the two most common formats for prerecorded music, first alongside the LP and later the Compact Disk

Records

The updated version of a phonograph

 

 

Phonographs

The phonograph, record player, or gramophone is a device that was most commonly used from the late 1870s through the 1980s for playing sound recordings. The recordings played on such a device generally consist of wavy lines that are either scratched, engraved, or grooved onto a rotating cylinder or disc. As the cylinder or disc rotates, a needle or other similar object on the device traces the wavy lines and vibrates, reproducing sound waves.

   

Check out this interesting article

http://technabob.com/blog/2007/02/08/a-brief-history-of-portable-media-players/