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Point-of sale (POS) is the location where a transaction takes place. It also refers to the immediate capture of transactions and customer payment information when goods and services are purchased. This data can be obtained using many different devices such as a computer, cash register, barcode scanner, PIN pads, and magnetic card readers.
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Linux is widely recognised as an ideal operating system to serve web pages. But the server capabilities of Linux extend far beyond merely providing HTTP servers.
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Web server benchmarking is a way of determining the performance of a web server with the aim of establishing how well it copes under a sufficiently high workload. Performance testing is important to help maintain continuous system performance.
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Web proxy software forwards HTTP requests without modifying traffic in any way. They can be configured as a transparent proxy with no client-side configuration required. They can also be used as a reverse proxy front-end to websites; here the cache serves an unlimited number of clients for one or some web servers.
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