Does an apple IPAD do everything a laptop does?

My friend just bought an iPhone 4s. He says it’s for verizon but it has a sim card tray slot. I have iPhone 4 for verizon but mine doesnt have a sim card tray. So does my friend really have a Verizon iPhone 4s with a sim card tray on the side?
I am talkin about Verizon. Can you add a sim in the verizon iPhone 4s?

I am deciding between a Kindle Fire and an Apple Ipad – The price is like completely better for the Kindle Fire – but i was wondering if anyone can tell me which is better for games and some music.
I would be getting it mostly for the games and to listen to some music.
I can get the kindle fire – a screen cover and a case all for the same price as a refurbished apple ipad!?
if anyone can tell me what they think is better. that would be great.!
thanks!

I want to write essays and homework stuff on it does apple have any apps or anything for the apple ipad 2??

I have a MacBook Air and i want to use Inventor on it
It says on their website "Autodesk Expands Support for Mac Users
Autodesk provides full support for the following products when used on the Mac via Parallels Desktop®, Autodesk’s preferred Mac virtualization software. Parallels Desktop for Mac provides a complete suite of essentials to run Windows on Mac in a fast, easy, and powerful way. The world’s No. 1 selling Mac system utility, Parallels Desktop for Mac has more than 2 million users worldwide. Autodesk also supports these products via Boot Camp®, part of Mac OS X that enables you to install and run Microsoft® Windows® (and Windows-based applications) on a Mac® computer."
So I need to download boot camp?