You are probably talking about a Polaroid instant camera. They were popular for years because they were the only camera where you could see images instantly. However with the invention of digital cameras where you can see the image right away on screens, they became obsolete and Polaroid went out of business.
They still make Polaroid cameras. Check Wal-Mart or Target some place inexpensive. I use one for the line of work I'm in and I do get the film at those stores. The film gets expensive so I would suggest you just stay with a digital camera. But as they say, "To each is own." Have fun with yours if you get one.