How to upgrade my iPad? . - Tablets & eReaders

If you mean update your iPad to iOS 10, there are two ways for you: update over the air or with iTunes. Here is a detailed post:
How to Install iOS 10 on iPhone iPad

This link explains some of the issues with upgrading iPads to newer version of the iOS ...

http://ipad.about.com/od/iPad-FAQ/f/Why-Cant-I-Upgrade-To-iOS-6-0-On-My-iPad.htm

I’m happy to assist further over the phone at https://www.6ya.com/expert/ronald_f3c54257e2cc2559

Depends, When you have an iPad first generation, you can't update to iOS 6. All other iPads can upgrade to iOS 8.0.
In the few years your iPad is around, the processors are much faster. There is more internal memory and so on. Please to avoid you can't upgrade your next iPad, don't buy a second or third generation.
If you have a newer iPad than the first generation, just goto settings, general, an then the second line from the top says software update. Press that one. Your iPad will look if any update is available, and suggest to download and install it.
But the best way to upgrade, is connecting the iPad to iTunes and click on the name of the iPad on the left side in the menu, then click on upgrade.

if you have laptop/desktop computer you can sync the iPad with iTunes and download iOS 8.1.2 there:
Upgrading iPad to iOS 8: Through iTunes 1. Backup your iPad
Open iTunes. Select your iPad in iTunes and click Back Up Now.
2. Restart your iPad and your Computer
3. Download and Install the Update
Go to iTunes -> Select iPad -> Check for Update -> Click Download and Update

Whichever method you choose, the process will take quite some time to work depending on how much free storage you have on your iPad, your internet connection, and how Apple's servers are doing with upgrades. Occasionally, Apple will either not let you download the upgrade or it will fail. For iOS 8, you must have an iPad 3 or newer. This does not work with the original iPad - if something goes wrong, restart your device, and try again.

How to Upgrade to iOS 7 on an iPad or iPad Mini
How to Install iOS 8 When Your Device is Low on Storage

If it's the original ipad one, nope. Not fair my 3 yr old has one and I can't get newer apps. Ios8 rumors are that ipad 1 won't even be recognized

Upgrade means buy a new ipad 6

Connect your ipad to a laptop. then it will notify you if your for upgrades.
Note if your ipad was synchronized with other laptop or account. They contents of the ipad will be erased. So backup first before any upgrade

If you have ipad 2, connect to a loptop with internet connection. An itunes must have installed on that laptop. Then wait for notification for an upgrade to 7.06. But first backup your ipad

NO
- iOS 6 and higher is not compatible with first gen. iPads!
First gen iPad not getting iOS 6 update Apple confirms

Apple's iOS devices such as iPads, iPhones, and iPods do not support flash. This is the reason that installing from Adobe failed.