Upgrades welcome. If you're buying a kiosk for the first time and you're unsure what components it should have, start small. Go with a basic kiosk with just an enclosure, PC, and touch screen display. Since kiosks are modular, you can add components at any time, including card readers, bill acceptors, and even security cameras. You can even add a second display atop your kiosk to advertise your business.

It's like a computer but it isn't. Give your kiosk a different feel from a typical computer. A kiosk should be an escape from the traditional PC and provide a new experience for users. If it looks too much like a work computer or the PC in the den, they may not use the kiosk because they assume they can get the same information from home.

Cash only. To avoid paying credit card processing fees, businesses like restaurants and convenience stores can install ATM kiosks. Instead of using their credit or debit cards at the point of sale, customers can withdraw cash from their accounts without leaving the store. They get convenience while you pass the expense directly to them. Read more about ATMs here.

Safe kiosks. For businesses that conduct cash transactions, safe kiosks count and collate large amounts of cash with extra-secure enclosures, increasing security and letting you avoid typical safe drops.

Make them easy to spot. Kiosks should stand out so they are visible to everyone passing through their location. If you can't place it in a visible location, incorporate overhead signage — either an illuminated sign or a second display screen that alternates images and multimedia.

Identity theft concerns. When designing your kiosk, keep in mind the public's concern about identity theft. Make sure the kiosk clearly notes that all personal information they enter will be secured and protected.