Secured updating network systems
If there is a price change, this can also be easily done through the inventory window.Other advantages include the ability to implement various types of discounts, a loyalty scheme for customers, and more efficient stock control.Businesses are increasingly adopting POS systems, and one of the most obvious and compelling reasons is that a POS system does away with the need for price tags.Selling prices are linked to the product code of an item when adding stock, so the cashier merely needs to scan this code to process a sale.Retailers and marketers will often refer to the area around the checkout instead as the point of purchase (POP) when they are discussing it from the retailer's perspective.
In 1986, Gene Mosher introduced the first graphical point of sale software in Las Vegas Nevada to large crowds visiting the Atari Computer booth.Each station in the restaurant had its own device which displayed the entire order for a customer — for example,  Vanilla Shake,  Large Fries,  Big Mac — using numeric keys and a button for every menu item.By pressing the [Grill] button, a second or third order could be worked on while the first transaction was in progress.Up to eight devices were connected to one of two interconnected computers so that printed reports, prices, and taxes could be handled from any desired device by putting it into Manager Mode.In addition to the error-correcting memory, accuracy was enhanced by having three copies of all important data with many numbers stored only as multiples of 3.
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One of the first microprocessor-controlled cash register systems was built by William Brobeck and Associates in 1974, for Mc Donald's Restaurants.