If you're not wanting to be locked into a contract through your carrier, I would say check out the Zenfone 2. It has 4GB Ram, 64GB of storage and micro sd. It goes for 299 unlocked through Amazon. I read a few days ago they have a 256GB version coming out.
If you have your heart set on Samsung...
Assuming that you are on Windows 7 you should be able to right click on the desktop and select " Screen Resolution" From there do see "Detect" towards the top of the page? Try clicking that to see if it will detect the other screen. Also to the right of "Display" see if there is a drop down...
In Google Chrome under settings you will see an option that says on startup, and below it is 3 options. Select open a specific page, and then click set pages to see if it already has an option entered. If not try entering google.com, and see if that solves your issue.
The Ipad should have WiFi on it, you will just need a WiFi modem, or purchase a router that has WiFi built into it. Try to Google the model of your internet modem, and it should tell you if it has wireless.