Hi there and welcome.
I have to admit that I'm a little confused here but that's fairly normal for me however, are you trying to set your iPad up with a new computer or maybe it's something else really obvious that I'm missing. Anyway, if you set an iPad up as new then yes, your Apps will be gone however as long as you have backed it up you can restore it from a backup, iTunes will prompt you here. In. Addition, as long as you sign in to iTunes on your iPad with your Apple ID all your previously purchased (including free) apps will be there to re-install, just check the purchased tab in the App Store.
There is lots of good advice and info on here plus plenty of members all too willing to help with any problems.
Remember, search is your friend. If you can't find the answer you need and you post a question then give as much info as you can to help members help you i.e. iPad 1 or 2, etc. and iOS version and name of app if the problem is with a specific app........and please don't forget to read the forum rules
http://www.ipadforums.net/forum-rules-help-info/2119-forum-rules-everybody-please-read.html
These are the hacking section rules for all you jail breakers (and would be jail breakers)
http://www.ipadforums.net/ipad-hacking/2892-hacking-section-rules-please-read.html
We also have an app for this forum. The link to download the app is:
Discussion Forum for iPad Users for iPhone, iPod touch, and iPad on the iTunes App Store and a great tutorial/guide for using the IPF App here
http://www.ipadforums.net/new-membe...sistance/107524-ipad-forums-app-tutorial.html
You can download the manual for your iPad here
http://help.apple.com/ipad/6/ and here
http://support.apple.com/manuals/ and in iBooks search for "iPad user guide for" and you will find free comprehensive manuals for iOS 4, 5, 6, etc.
If you have other Apple products or are interested in other Apple kit then why not join our sister forum too at
http://www.appleforums.net/ and for iPhone users, come and join in the discussion over at
http://www.iphoneforums.net
The Archangel