Difference between Sync and Backup?

I've asked AppleCare but can't seem to get an understandable answer. Maybe someone can help here.
What is the difference between doing a Backup and doing a Sync via iTunes on your computer for either your iPad or iPhone?
Thanks,
Steven

Here is a portion of the support article mentioned above. The way I can personally understand it is that the sync transfers the content back and forth and a backup is created when you perform the sync. This talks in terms of the iPod and iPhone but it works the same for the iPad.
About Syncing and Backups
You can use iTunes to sync content on your computer (such as music, applications, podcasts, videos, ringtones, photos, notes, email account settings, contacts, calendars, and bookmarks) with your iPhone or iPod touch (Note: Some content is available only on iPhone and some features require iOS 2.0 or later software). Syncing makes sure this content is the same on your iPhone or iPod touch and computer.
iTunes creates a backup of your iPhone or iPod touch when you sync, which you can then use to restore from if you need to return to a previously backed-up state. You can use a backup to transfer this information to a new device, except for some specific exceptions noted in parenthesis below. With iOS 4 and later, if you encrypt the backup it can transfer the keychain items (passwords, credentials) to a new device.
If you protect your iPhone or iPod touch with a passcode, you will be prompted to enter the passcode when you connect to iTunes. Once you successfully enter the passcode, iTunes will recognize that device as authorized and you will not need your passcode to back up or sync. When restoring from an iOS 4 (or later) backup, if the device had a passcode set, iTunes will ask if you want to set a passcode (and remind you that you had protected your device with a passcode.) iTunes will not ask you to set a passcode when restoring from iOS 3.x and prior backups.
iTunes only keeps one backup created during the sync process for each device. If you restore the iPhone or iPod touch and choose to set up as a new device from the Set Up your iPhone (or iPod touch) screen, iTunes will automatically sync and create a new, empty backup that will replace your previous backup. If you change your mind and want to restore to your previous state, you will have to retrieve your previous device backup from Time Machine (on your Mac), or other backup solution you regularly use. If you have Mac OS X 10.5.5 or later and use Time Machine, you may use Time Machine to find a previous backup.
Message was edited by: Demo

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What's the difference between sync and back up

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This is a good explanation, for half of the situation. Could you please describe how this checkbox affects the more common scenario of new Apps that are purchase/downloaded to the iPhone? Are they not synced if this box is unchecked? Apple should reword this checkbox label to better indicate if it applies "just in one direction" or both directions.
For example, my wife and I both have iPhones, use the same account to buy Apps. I was looking for a way to avoid all her apps ending up on my iPhone after I sync, and then I have to delete them from my phone and clean up the App screen layouts, etc. I'm sure she doesn't want all of my new Apps either. However, if I UNCHECK this "Automatically Sync New Apps" box, will the Apps downloaded on the iPhones (we rarely buy on the computer in iTunes) then not get synced automatically? I realize that one can manually check the box for each App in the list within iTunes, to force the sync, but one can do that only while the device is connected. Syncing at our house is usually done in a hurry, who has time to sit down at the computer every time and scrutinize which Apps should be sync'd. What I was hoping is that iTunes could be smart enough that when it sees a new app on an iPhone, it could remember the App came from that iPhone and check the box to sync, but just to that device. Unless someone goes in and manually checks the box for that App on other devices. Maybe that is in fact the way it works, but I was hoping someone knew for sure and could confirm.

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Hi Andrey,
Kindly check the below presentation:
http://www.google.co.in/url?url=http://www.saphana.com/servlet/JiveServlet/previewBody/4664-102-3-10606/SAP%2520HANA%2520SPS%252008%2520-%2520Whats%2520New%2520-%2520SOHADR.pdf&rct=j&frm=1&q=&esrc=s&sa=U&ei=FmvoU6mXEezZ0QWko4HYDg&ved=0CCEQFjAA&usg=AFQjCNEFUDH5GmPMgScE5as66AVW3Of92g
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SRAVZ wrote:
What is the difference between sync and async web services?from a webservice protocal perspective there is no difference. you still make a request and get a response. the difference is in what the initial response contains. in a synchronous call, the initial response will contain the final result. in an asynchronous call, the initial response will not contain the final result, but may contain some sort of "ticket" which can be used in a subsequent call to get the final result. generally, the client will need to poll the webservice until the final result is available.
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Hey thanks. For some reason I always thought that auto-syncing added alot more than just the music to the ipod. Don't know why I thought this. I'm ok w/ratings and playcounts not being added as I don't pay attention to this anyways.
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Hi all ;
I need some basic information about following things in data guard.(oracle 10g).
difference between SYNC/ASYNC, LGWR/ARCH, and AFFIRM/NOAFFIRM?

955912 wrote:
Hi all ;
I need some basic information about following things in data guard.(oracle 10g).
difference between SYNC/ASYNC, LGWR/ARCH, and AFFIRM/NOAFFIRM?
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Version:10g2
Is there a difference between a Hot Backup and an Online backup? Aren't these terms interchangeably used? Couldn't find a similair thread in OTN.

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Kamran Agayev A. (10g OCP)
http://kamranagayev.wordpress.com
[Step by Step install Oracle on Linux and Automate the installation using Shell Script |http://kamranagayev.wordpress.com/2009/05/01/step-by-step-installing-oracle-database-10g-release-2-on-linux-centos-and-automate-the-installation-using-linux-shell-script/]

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Hi, i´m doing a t01 syncbo... what is the difference between synchronous and asynchronous?
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(Award Points if the info is useful)

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Looking for new laptop what are the differences between pro and air? Besides size. Does the air preform like the pro?

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Digital Trends (13") - http://www.digitaltrends.com/laptop-...h-2013-review/
LaptopMag (13") - http://www.laptopmag.com/reviews/lap...play-2013.aspx
Engadget (13") - http://www.engadget.com/2013/10/29/m...-13-inch-2013/
The Verge (13") - http://www.theverge.com/2013/10/30/5...ay-review-2013
CNet (13") - http://www.cnet.com/laptops/apple-ma...-35831098.html
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LaptopMag (15") - http://www.laptopmag.com/reviews/lap...inch-2013.aspx
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CNet (15") - http://www.cnet.com/apple-macbook-pro-with-retina-2013/
PC Mag (15") - http://www.pcmag.com/article2/0,2817,2426359,00.asp
Arstechnica (15") - http://arstechnica.com/apple/2013/10...-pro-reviewed/
Slashgear (15") - http://www.slashgear.com/macbook-pro...2013-26303163/

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Hello julian
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http://support.apple.com/kb/ht1867
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http://support.apple.com/kb/PH12519
iOS: Importing personal photos and videos from iOS devices to your computer
http://support.apple.com/kb/HT4083
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afzal wrote:
Hi ALL,
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===================
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RMAN>

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Dear Barbara
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