- Transfer iTunes purchases by:
- Transfer other music by using a third-party program like one of those discussed here. Google for more.
- If you have photos synced to the iPad from the other computer you will need a program like PhoneView. It is a paid program. It also does music.
- Connect the iPad to the computer and make a backup by right clicking on the iPad under Devices in iTunes and select Back Up
- Restore the iPad from that backup.
Note that the backup that iTunes makes does not include synced media like apps and music.