I can provide you already develop full featured POS software

Users Management * System access privileges 1.- Administrator 2.- Employee Manage Categories – Create, Update, Show, Delete (Category Name). Manage Items – Create, Update, Show, Delete (item code, item name, purchase price, sale price, quantity, image). Supports Barcode Reader. Record of Expenses Automated Customer Registration and Filtration Reset of Sales, Expenses and Customer Registration Register Sales very easily Register Sales with debt option Manage Debts Complete outstanding debt. Barcode creator Sales Report Sales of the day. Sales between date range. Sales Details. Debt Report. Report of Income and Expenses. System configuration Tax application Report earnings chart Top sales graphic report Report expense chart Print Reports Print sales ticket Very nice and intuitive User Interface Design MySQL Database Backup DataBase Restore DataBase ======================================================= Minimum requirements Visual Studio 2010 Microsoft Visual Studio Installer Projects to generate .exe Windows 7, 8, 8.1, 10