My computer won't recognize my ipad when I plug it in.

Have you tried the troubleshooting on this page http://support.apple.com/kb/TS1538 ?

your USBdeviceconfiguration.plist could have been deleted

iPad not appearing in iTunes

http://www.apple.com/support/ipad/assistant/itunes/

iOS: Device not recognized in iTunes for Mac OS X

http://support.apple.com/kb/TS1591

iOS: Device not recognized in iTunes for Windows

http://support.apple.com/kb/TS1538

iTunes for Windows: iTunes can’t contact the iPhone, iPad, or iPod software update server

http://support.apple.com/kb/ts1814

iTunes for Windows: Device Sync Tests

http://support.apple.com/kb/HT4235

IOS: Syncing with iTunes

http://support.apple.com/kb/HT1386

Apple - Support - iPad - Syncing

http://www.apple.com/support/ipad/syncing/

iTunes 10.5 and later: Troubleshooting iTunes Wi-Fi Syncing

http://support.apple.com/kb/ts4062

iOS: “Not enough free space” alert when trying to sync

http://support.apple.com/kb/ts1503

You may need to delete iTunes on your computer and then reinstall.

How To Completely Uninstall and Remove All Traces of iTunes

http://zardozz.com/zz/2008/04/how-to-completely-uninstall-and-remove-all-traces- of-itunes.html/

Wi-Fi Sync Not Working? Here’s How to Fix it for All iOS Devices

http://osxdaily.com/2013/02/17/wi-fi-sync-not-working-fix-ios/

 Cheers, Tom 😉