POS Barcode Scanner
In a retail store it is best to use bar codes with your point of sale. You will need a barcode scanner. Barcode scanners plug into your USB port in your computer. Barcode scanners make it easy to keep track of your inventory and your items. Barcode scanners also make it easy to check out customers.
When your inventory first arrived at your store you can use a barcode scanner to check all the products in. As your customers are checking out you can use a barcode scanner to check out your customers. 
Barcode scanners work well with online point of sale systems. There are many online retail point-of-sale systems available. And they usually charge a small fee per month or sometimes online retail points of sale systems are free.
