Overview of Syncing iPhone with Computer

When you connect iPhone or iPod touch to your computer, it would be quite easy that items are automatically synced according to your preferences set in iTunes. You can, for example, enter phone numbers and addresses of friends and family members on your computer, connect iPhone  to sync, then unplug iPhone or iPod touch and tap a friend's name on the touchscreen to call.

Of course more functions can be done, you can also sync:

• Contacts—names, phone numbers, addresses, email addresses, and so on
• Calendars—appointments and events
• Notes (sync with Mac OS X Mail or Microsoft Outlook)*
• Web bookmarks
• Music and audiobooks
• Photos
• Podcasts
• Movies and TV shows
• Applications
• Ringtones (iPhone only)
• iTunes U content

Note : The above syncing is over USB on Mac only, Mac version requires Mac OS 10.5.7 or later

Contacts, calendars, notes, and bookmarks are synced from (or to) your computer, so if you add, change, or delete them on iPhone or, they are changed on your computer, and vice versa. You can also sync contacts with your Yahoo! or Google Address Book.