The short answer is that the screen is touch sensitive. The operating system responds in ways that satisfies the touches and gestures that the user make on the screen.
Yes, a cable made for the iPad will work with the iPad.
iPad apps are created to work on an iPad and will not work on a PC.
You can search and apply for jobs on an iPad, you can use an iPad for email for work and you can get a job writing apps for an iPad. The iPad is a tool for work, but you will still have to interact with people and use regular computers as well.
Videos on websites who are Flash based won't work on the iPad.
Yes, the accessories for the first generation iPad Mini work on the second generation iPad Mini.
You use the touch screen to operate the iPad device.
no.
If you work at Walmart you can get a 20% discount on an iPad. If you do not work there you will have to pay full price.
You get Terraria to work on first gen iPad by writing a review for the ipad.
Yes, an iPhone and iPod cable will also work. The AC power adapter is different with the iPad, but the cable is the same.
You can get Kik for an iPad Mini. The Kik iOS7 App will work on the iPad Mini.
Yes, the new iPad still is usable with the Smart Cover.