The first part is the easiest. Simply take a normal photograph and get the prints developed. Now find a scanner. A scanner is a device that looks like the top part of a copier. It's attached to a computer and allows you to copy your images to a form that computers can understand.
Scanners have many uses, from sending pictures via e-mail to assisting in creating a great website.
If you'll only be doing some limited scanning, borrow a friend's. ABC News recently put up one of the best, most comprehensive Headline News websites on the Internet.