Pos software generally does the following:
reads the information off a customer and process a payment receipt, takes inventory of available stock and closing stock,
accounting features lets you so your accounting, manage prodit and loss
some features of the software / system
1. quick keys and/or product lookup
2. multiple payment methods/split payments
3. returns, refunds and store credit features
4. user accounts and permissions
5. mobile registration
6. customer-facing display
7. inventory management
8. bulk product imports
9. product variants and composites
10. barcodes scanning
11. stock and auto-filled orders
12. inventory counts
13. stock transfer
14. promotion
15. customer management
e.t.c