Hauv cov khoom siv POS terminal, qhov screen ua haujlwm ua lub hauv paus sib tham, feem ntau ua rau pom cov ntaub ntawv kev lag luam (tus nqi, txoj kev them nyiaj, cov ntsiab lus luv nqi), kev taw qhia kev ua haujlwm (kev lees paub kos npe, cov kev xaiv luam ntawv txais nyiaj). Cov touchscreens qib lag luam muaj kev rhiab heev. Qee cov qauv zoo tshaj plaws suav nrog ob lub vijtsam (lub vijtsam tseem ceeb rau cov neeg sau nyiaj, lub vijtsam thib ob rau kev txheeb xyuas cov neeg siv khoom). Kev txhim kho yav tom ntej yuav tsom mus rau kev them nyiaj biometric (kev txheeb xyuas lub ntsej muag / ntiv tes), thiab cov ntawv thov e-ink siv hluav taws xob tsawg, thaum txhim kho kev tiv thaiv kev ruaj ntseg nyiaj txiag.