POS System Technical Principles

Lub hauv paus ntawm POS system yog nyob rau hauv kev sib koom ua ke nruj ntawm nws cov software thiab kho vajtse. Cov khoom siv feem ntau suav nrog cov ntawv sau nyiaj ntsuab, tshuab luam ntawv, tshuab luam ntawv barcode, thiab cov tub rau khoom nyiaj ntsuab, thaum lub software suav nrog kev ua haujlwm, kev tswj hwm software, thiab database. Thaum tus neeg siv khoom xaiv cov khoom, tus neeg txais nyiaj sai sai scan cov khoom lag luam nrog lub tshuab luam ntawv barcode. Lub POS system tam sim ntawd txheeb xyuas cov ntaub ntawv khoom, suav nrog tus nqi thiab cov khoom muag, thiab txiav txim siab suav tag nrho tus nqi. Tom qab tus neeg siv khoom them nyiaj, lub kaw lus hloov kho cov ntaub ntawv khaws cia thiab luam tawm daim ntawv muag khoom, ua tiav tag nrho cov txheej txheem kev lag luam.