Credit Card Point Of Sale What Is A Good, Simple Point Of Sale Software?

What is a good, simple point of sale software? - credit card point of sale

I start a small business, I will conduct telephone sales of a product. And I need a basic point of sale system. Basically, I need the program to do certain things:

Credit card processing, customer registration information (name, that is), billing and shipping address, the tax burden and print invoices (you can also print labels).

Of course, if there is a free program that does this, it would be great, but if I am willing to consider any proposal.

Thank you all in advance!