Today credit card machine got a lot of types and comes with different price tag. The type of credit card processing machine that one may need is highly dependent what type of business you have.

Usually a typical credit card machine comes with a printer but it can certainly depend on what enterprise you are catering. If for example you are dealing with an enterprise that uses the mail or phone for its transactions, then a printer is not a requirement. Example of these business are plumbing, home delivery and locksmiths. Definitely they don’t need a wireless machine. The credit card machine would be just as effective if it got a printer. If you have a mobile kind of business, then wireless machine is advisable but the set up is quite different including its cost and the need for a high cell signal. If you cater to different accounts then a credit card machine that can handle several at the same time can prove to be more productive. Examples of these businesses are grocery or parlor.
If you want to know what type of credit card machine that is suitable for you, survey your market as well as your product and service. Learning to adjust with what your customer needs would make business certainly flourish.