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Published byValentine Fletcher Modified over 8 years ago
ITIS 1210 Introduction to Web-Based Information Systems Chapter 37 How iPods, iTunes, and Podcasting Work
Introduction Digital music existing long before there were iPods MP3s & players Prior to iPod, users were typically ones with computer experience In 2001, with iPod anyone could Learn to use Afford
Introduction Music industry was cracking down on illegal downloads Users were afraid of being sued Providers were afraid of being sued Software developers were afraid of being sued State of the market: Massive demand for individual music downloads No easy, legal way to acquire that music
Introduction Publishers didn’t sell online yet And usually only in entire CD formats Couldn’t buy a single easily Widespread disagreement in the industry about the best way to sell music to modern customers People had no easy way to find the music they wanted Or to listen to it first before they bought it
Introduction Apple sees opportunity Launches first iTunes Music Store Integrated into Listening Ripping from existing CDs Burning onto CDs Directly to iPod also so iTunes and iPod were easily compatible
Introduction Singles were available for under $1 Legal rights of authors preserved Sales exceeded expectations of industry
iPods On Sept. 13th 1956 IBM made history with the invention of the first Hard Drive It weighed about a ton, and with 50-24" disks It could store a mind-blowing 5MB Not to mention that it cost $250,000 (in today’s dollars) per year to LEASE.
iPods Files stored in MP3 or AAC (Advanced Audio Code) format Compressed format Includes metadata Artist name Album name Music category So you can organize your music
iPods Storage capacity varies 40GB HD can store approx. 10,000 songs Flash-based memory as well Interface is easy to use Select individual songs Create playlists
iPods OS copies song from HD into memory Plays from memory so HD skips don’t interrupt the playing HD is off while music is playing Minimizes chance of a head crash Chip on motherboard decompresses file so it can be played
iPods Digital-to-analog converter Changes from digital format on HD To analog format for sound Amplifier increase signal strength Headphones or speakers let you listen
iTunes iTunes isn’t file sharing software It’s owned by Apple You can buy and listen to music on your computer or transfer it to your iPod Basically iTunes is a music player that recognizes many different file formats Can rip from a CD Burn to a CD
iTunes iTunes Music Store has legal arrangements with publishers Sells their music Splits proceeds Music is downloaded from the Music Store to your PC Transfer to an iPod or other portable device
iTunes DRM (Digital Rights Management) Protects content from unauthorized copying Limits what you can do with the music you’ve downloaded Can’t burn to a CD
Podcasting iPod changed not only the way we listen to music But the way we listen to radio as well Podcasting permits anyone Create their own program Attract subscribers who download that content Do-it-yourself at first Soon evolved into commercial world
Podcasting Can be created by anyone Simple – you and a mic Complex – studio Broadcast is first recorded Saved in an MP3 format Uploaded to a server RSS feed created Includes link to the MP3 file
Podcasting Alternative to RSS Uploaded to a podcasting server instead To access, the user downloads An RSS reader iTunes Something else capable of subscribing to podcasts
Podcasting User selects content Software downloads to user’s computer User now has access Can be copied to a MP3 player or iPod for mobile capability
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