itis 1210 introduction to web-based information systems chapter 37 how ipods, itunes, and podcasting...
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ITIS 1210ITIS 1210Introduction to Web-Based Introduction to Web-Based
Information SystemsInformation Systems
Chapter 37Chapter 37How iPods, iTunes, and Podcasting WorkHow iPods, iTunes, and Podcasting Work
IntroductionIntroduction
Digital music existing long before there Digital music existing long before there were iPodswere iPods MP3s & playersMP3s & players
Prior to iPod, users were typically ones Prior to iPod, users were typically ones with computer experiencewith computer experience
In 2001, with iPod anyone couldIn 2001, with iPod anyone could Learn to useLearn to use AffordAfford
IntroductionIntroduction
Music industry was cracking down on illegal Music industry was cracking down on illegal downloadsdownloads Users were afraid of being suedUsers were afraid of being sued Providers were afraid of being suedProviders were afraid of being sued Software developers were afraid of being suedSoftware developers were afraid of being sued
State of the market:State of the market: Massive demand for individual music Massive demand for individual music
downloadsdownloads No easy, legal way to acquire that music No easy, legal way to acquire that music
IntroductionIntroduction
Publishers didn’t sell online yetPublishers didn’t sell online yet And usually only in entire CD formatsAnd usually only in entire CD formats
Couldn’t buy a single easilyCouldn’t buy a single easily
Widespread disagreement in the industry Widespread disagreement in the industry about the best way to sell music to modern about the best way to sell music to modern customerscustomers
People had no easy way to find the music People had no easy way to find the music they wantedthey wanted Or to listen to it first before they bought itOr to listen to it first before they bought it
IntroductionIntroduction
Apple sees opportunityApple sees opportunity Launches first iTunes Music StoreLaunches first iTunes Music Store Integrated intoIntegrated into
ListeningListening Ripping from existing CDsRipping from existing CDs Burning onto CDsBurning onto CDs Directly to iPod also so iTunes and iPod were Directly to iPod also so iTunes and iPod were
easily compatibleeasily compatible
IntroductionIntroduction
Singles were available for under $1Singles were available for under $1 Legal rights of authors preservedLegal rights of authors preserved Sales exceeded expectations of industrySales exceeded expectations of industry
iPodsiPods
On Sept. 13th 1956 IBM made history with On Sept. 13th 1956 IBM made history with the invention of the first Hard Drivethe invention of the first Hard Drive
It weighed about a ton, and with 50-24" It weighed about a ton, and with 50-24" disksdisks
It could store a mind-blowing 5MBIt could store a mind-blowing 5MB Not to mention that it cost $250,000 (in Not to mention that it cost $250,000 (in
today’s dollars) per year to LEASE.today’s dollars) per year to LEASE.
iPodsiPods
Files stored in MP3 or AAC (Advanced Files stored in MP3 or AAC (Advanced Audio Code) formatAudio Code) format Compressed formatCompressed format
Includes metadataIncludes metadata Artist nameArtist name Album nameAlbum name Music categoryMusic category
So you can organize your musicSo you can organize your music
iPodsiPods
Storage capacity variesStorage capacity varies 40GB HD can store approx. 10,000 songs40GB HD can store approx. 10,000 songs Flash-based memory as wellFlash-based memory as well
Interface is easy to useInterface is easy to use Select individual songsSelect individual songs Create playlistsCreate playlists
iPodsiPods
OS copies song from HD into memoryOS copies song from HD into memory Plays from memory so HD skips don’t Plays from memory so HD skips don’t
interrupt the playinginterrupt the playing HD is off while music is playingHD is off while music is playing Minimizes chance of a head crashMinimizes chance of a head crash
Chip on motherboard decompresses file Chip on motherboard decompresses file so it can be playedso it can be played
iPodsiPods
Digital-to-analog converterDigital-to-analog converter Changes from digital format on HDChanges from digital format on HD To analog format for soundTo analog format for sound
Amplifier increase signal strengthAmplifier increase signal strength Headphones or speakers let you listenHeadphones or speakers let you listen
iTunesiTunes
iTunes isn’t file sharing softwareiTunes isn’t file sharing software It’s owned by AppleIt’s owned by Apple
You can buy and listen to music on your You can buy and listen to music on your computer or transfer it to your iPodcomputer or transfer it to your iPod
Basically iTunes is a music player that Basically iTunes is a music player that recognizes many different file formatsrecognizes many different file formats Can rip from a CDCan rip from a CD Burn to a CDBurn to a CD
iTunesiTunes
iTunes Music Store has legal iTunes Music Store has legal arrangements with publishersarrangements with publishers Sells their musicSells their music Splits proceedsSplits proceeds
Music is downloaded from the Music Store Music is downloaded from the Music Store to your PCto your PC
Transfer to an iPod or other portable Transfer to an iPod or other portable devicedevice
iTunesiTunes
DRM (Digital Rights Management)DRM (Digital Rights Management) Protects content from unauthorized copyingProtects content from unauthorized copying Limits what you can do with the music you’ve Limits what you can do with the music you’ve
downloadeddownloaded Can’t burn to a CDCan’t burn to a CD
PodcastingPodcasting
iPod changed not only the way we listen to iPod changed not only the way we listen to musicmusic
But the way we listen to radio as wellBut the way we listen to radio as well Podcasting permits anyonePodcasting permits anyone
Create their own programCreate their own program Attract subscribers who download that contentAttract subscribers who download that content
Do-it-yourself at firstDo-it-yourself at first Soon evolved into commercial worldSoon evolved into commercial world
PodcastingPodcasting
Can be created by anyoneCan be created by anyone Simple – you and a micSimple – you and a mic Complex – studioComplex – studio
Broadcast is first recordedBroadcast is first recorded Saved in an MP3 formatSaved in an MP3 format
Uploaded to a serverUploaded to a server RSS feed createdRSS feed created
Includes link to the MP3 fileIncludes link to the MP3 file
PodcastingPodcasting
Alternative to RSSAlternative to RSS Uploaded to a podcasting server insteadUploaded to a podcasting server instead
To access, the user downloadsTo access, the user downloads An RSS readerAn RSS reader iTunesiTunes Something else capable of subscribing to Something else capable of subscribing to
podcastspodcasts