When there is an electricity supply cut, large stores have little option about closing. It is not as simple as adding up the items in a basket with a calculator. The POS till includes inventory control, deducting items from stock as they are sold. The inventory count would be totally messed up if items were sold without going through the software inventory deduction procedures.

The POS hardware can be loaded with a range of retailer POS software solutions. These software programs allow stock to be deducted by items purchased, vastly improving stock control. Improved stock control means lower stock costs, less space required and improved profits.

Buying patterns can be analyzed simply and Customer Loyalty programs implemented if the right POS software is installed. Ordering can be automated and management much better informed regarding the performance of particular lines or departments.

Customer Self-Service POS hardware is more complicated still, so goes wrong more often. These machines include extra scales, so that individual items can be weighed to check the customer has not placed extra items on the belts without scanning them. Customers need to be educated in the use of the self-service tills, meaning that staff have to be available to assist customers with problems, or who are not used to the system.

Self-service POS hardware also includes cash handling equipment. The cash handlers need to be able to detect forged banknotes and to be able to dispense notes as well as loose change. The cash dispenser resembles an ATM and needs to be filled daily, with checks made that the correct loading procedure has been followed.