Cant run certain apps without upgrading my iPad 1 to iOS 6.0

Even when you manage to put the Google play store app on your iPad, you won't be able to run any of the apps they sell there. You need an android tablet to run these apps.

Unfortunately you can only update to 5.1.1 for the ipad1

Oops,
Heidi, again.

My excuses you already did put the most important things here.
Right. The first iPad, only can install iOS 5.1.1 If you go to settings, general and then to the second line Software update, it says (should say) iOS 5.1.1 software is up to date.

And yes. Lots of apps now on the market, are written for the newer iOS's Latest version is iOS 8.0.2.
But these iOS's and modern Apps, need fast processors and a huge memory.
Apple now has the A8 processor, must be the eight generation of processor and the memory where the programs (apps) are running in, now are 4 times as big as in 2010, when the iPad 1 came on the market.
I still see lots of people use the iPad 1 and as long as they don't want newer apps it is still a great machine.
If you really want to run the new apps, you better wait a few weeks, because Apple will announce the new iPads soon.
Even if you don't want the newest, the other versions will become a little cheaper, as soon as the new iPad(s) are on the market.
Dont buy a iPad 2 any non retina, because they will be in the same situation (not possible to upgrade) soon.

Be aware, Apple is bringing new iOS's almost every year, and the devices, still powerful enough can upgrade without any problem. There is no Android firm, who delivers major updates for their older devices. If you want to update, you must root the device first and then you can install other operating systems, with the risk the device never works as it used to be. For this you should have lots of knowledge about computers and work through lots of frustration, if it does not work the first time you install a rooted android version. And there also is a limitation. When the processors become faster and the memory increases, the older devices can't use the newer rooted versions either.

Unfortunately, Netflix only makes an iPad app for iOS 6 and later. You will have to get a newer iPad if you really, really want to watch Netflix on it, because your iPad cannot be upgraded to iOS 6.

install netflix on ipad first gen.:
first make sure your iPad 1st. gen is on iOS 5.1.1 !
It is possible, a bit tricky, but possible. First, you'll need to download the Netflix app through iTunes on your computer, this will make it show up as "purchased" in your library. After that, open up the App Store on your iPad 1 and go to the 'purchased' tab. When you try to install it this way it will tell you that you need iOS 6 or higher, but will also ask if you would like to download an older version of the app. then click on download.
- again step by step:
1) Open up iTunes on your computer
2) Go to Store (left hand column) ->iTunes Store
3) Search for Netflix; - download the app
4) then open App Store on your iPad
5) Click on 'Purchased'
- you will have to install NetFlix by clicking on it as usual.
App Store will ask you: "Download an older version of this app. The current version requires iOS 6.0 or later, but you can download the last compatible version.",
then click on Download and it should finally work.

iOS is not an app - it is the running system of an iPad and is to be dowloaded from Apple:

- the download depends on the model of your iPad:
For the iPad first generation (A1219) to update is only possible with connecting the device to iTunes on a computer.
- but this model supports only iOS 5
- NO iOS 6/7/8
-------------------
for all other models:
There are two ways to upgrade the iOS version of your iPhone, iPad, or iPod Touch - via connecting the device to iTunes on a computer
- or directly from within the device, but only snce iOS 5, it is possible to upgrade the iOS version without the need to connect the iOS device to a computer (over-the-air update)
just go to: settings - general - software update

- meanwhile you may download the iOS 8.1.2 which is good and some Apps require it....
------------
There are two ways to upgrade the iOS version of your iPad
- via connecting the device to iTunes on a computer
- or directly from within the device, but only since iOS 5, it is possible to upgrade the iOS version without the need to connect the iOS device to a computer (over-the-air update)
just go to: settings - general - software update

no, you can not. there are some web sites that have to older versions of the apps. do a search for iOS 5 app

You have to download an app for documents like Open Office to download and open on your iPad. Safari won't let you download certain files from the internet. Apps like Downloads HD are one of those apps that lets you download almost anything from your iPad and open it from within the app or from another app that can open that file you downloaded.

safari cant download certain files because iOs dosen't support that format but I know a way around all that

1. go to the app store and search downloads lite or you can buy the full.
2. go and find your file and downlaod it.
then go on iTunes and go under apps and select Downloads Lite then drag and drop your files