Before we understand what POS Software is and what are its uses, the real meaning of POS has to be understood. In general it refers to either point-of-service or point-of-sale. This could mean a checkout counter at a retail shop or any other location at which transactions occur. Hence, it's not difficult to understand why POS terminals are used in hotels, stores, malls, bars and shops.

Though POS system includes both software and hardware components, this article will focus only on the software side of it. Here's a bit of history side to it. The earliest electronic cash registers had some type of computer programs loaded in them. These programs had very little functionality and in comparison with modern day programs, it looks pale. The modern day programming techniques have provided the developers with unlimited concepts on how to be more creative and what features have to be incorporated in the software including food cost reports and real time labor.

There are few predefined set of rules which computers follow while communicating with other computers. These rules are universally referred to as protocols. Using these protocols, POS terminals communicate with other devices. All the POS Software programs are supported by protocols, so that they are able to interact with a wide range of devices including a bar-code scanner, a credit/debit reader and POS printer. There are numerous POS command protocols. Some of them include ADM 787/788, EPSON Esc/POS, CD 5220 and DSP-800.

When POS software is used concurrently between two devices, there exists a high level of compatibility between them. To ensure this, the software developers have to meet certain standards. OPOS was the first software standard developed by Epson, NCR, Microsoft and Fujitsu-ICL. People recognize it as "OLE for POS", as it is based on Microsoft's COM technology. This is what makes OPOS language independent. The second standard to be developed was JavaPOS. It is programmed on Java, which makes it platform independent. It was developed jointly by NCR, IBM and SUN.

High quality POS software has lots of advantages to it. They are very efficient and can help you increase your profit levels. It also helps you in reducing inventory costs. Customer service too can be improved considerably. A lot of time can be saved by the POS software as they can automate the repetitive tasks.

There are lots of products that are available in the market affiliated to POS software. The competition is intense among many service providers, in providing excellent POS related products. Choosing the right kind of software is not an easy task.

One must consider several factors while choosing one. The first important factor to be considered is the industry in which you operate. And second factor is the overall turnover of your company. Before choosing any software, check if it is bug free and is stable. You can confirm this with any retailer using them. The software has been found compatible with different operating systems like Windows, Linux and Macintosh. But, the options available with Windows system are found to be the best out of the lot.