EPoS is a broad generic term used todescribe a retail cash register system. The letters standing for Electronic Point of Sale, or in lay man’s terms any electronic device that can process a customer sale in a shop.

So a desktop calculator with a shoe box could be classified as an EPoS system in the same way a top of the range till could be also

However the term EPoS systems is more usually given to a higher end system that is a computer based usally with peripherals such as bar code readers attached.