In the business sector, the POS system is an efficient way in order to increase sales in any kind of business. Early cash registers were the first ones which are applied by most groceries. An early cash register were designed using a coding device wherein the products sold would be listed using only the amount of products. Traditional trading was obviously not effective because the commodities sold are not listed and the number of items which are taken from the original stock is not computed. After a couple of years, more companies have provided various systems for cash registers. At that point in time, cash registers already have a coding scheme for each product and the machines were able to list down all the products sold. However, since most companies have a lot of cash registers, printing and listing of products would not only be challenging but also quite expensive.
Today, most cash registers are changed to modern POS system which is computer based. There are now new forms of hardware which are used for registering items such as scanners and infrared sensors. Cashiers would not need to list down the products anymore since the machine would be the one to record and commute all the commodities sold for each customer. The need for an auditor or an accountant would also be inappropriate since the modern POS system is connected through a database through the use of LAN or a Local Area Network. All the registers and terminals are then connected to a main drive which would list down all the commodities sold, compute for monthly and daily sales as well as backup in case of a system error. Most POS Machines are also connected to remote connection and the data in a grocery or in a restaurant can be sent to either a laptop or a web based database. All the products would be registered through the POS system with the use of a serial code which would be passed to a sensor. The prices of commodities can also be changed either through a remote connection or through the database.
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