Currently Being ModeratedDec 10, 2012 10:06 AM (in response to NileshGohil)
Currently Being ModeratedDec 10, 2012 10:14 AM (in response to NileshGohil)
Yes. However, the backup file does not necessarily contain everything on your device (music, some purchases, some photos) so you want to make sure all items are backed up and transferred for safekeeping first.
iOS: How to back up - http://support.apple.com/kb/HT1766
iTunes: About iOS backups - http://support.apple.com/kb/HT4946 - including a list of what is backed up.
How to Restore iPhone From Backup - http://ipod.about.com/od/iphonetroubleshooting/ss/restore-iphone.htm
iTunes: Backing up, updating, and restoring iOS software - http://support.apple.com/kb/HT1414
You will need to copy the backup file from one computer to another:
http://support.apple.com/kb/ht4946 - iTunes: About iOS backups > Where iTunes backups are stored on your computer