What does the front-end computer in meter reading software mean?

Front-end machine refers to the intermediate equipment used on site. The front-end computer generally exists between the front-end client and the back-end server, and plays the role of an adapter, that is, converting between different communication protocols, data formats or languages. Banks generally use front-end machines such as ATM, POS, IC card, UnionPay gold card, telephone banking, securities banking, banking tax, instant payment, provident fund management system, electronic remittance and settlement in the same city.