By securing the register itself as to can do certain tasks, including opening the till for paidouts, employees will know grabbing money will not be as easy. Accounting for every dollar and every item that is sold, theft is reduced. Using a bar code scanner, each transaction is fast.
Pricing is in the system, so there is no guesswork as to how much an item costs.
Sale prices are programmed in, so the correct price is given when an item is scanned. You put your customers into the point of sale system- those that ar tax exempt or get special pricing are accounted for. Clerks do not need to remember who gets what discount, it is built in. By tracking every facet of your inventory using a computerized cash register, you have the details needed to save money on your purchases and taxes, as well as reducing theft and mistakes at the time of purchase. Some point of sale systems even create auto-purchase orders by vendor.