POS systems mainly include in supermarkets, convenience stores, pharmacies, apparel shops, specialty shops, food service industry, gas stations, hotels, drugstores (pharmacies), and its functions have evolved from year to year. Still, in recent years, the simplified version of POS has become popular in general shops. https://www.apsense.com/article/best-pos-and-cloud-tips-you-will-read-this-year.html