This is an alternative to Bundy Clock the only advantage is it uses a computer and it uses a numlock keypad to enter you id number. Can install at any computer. Can be run on Windows 98 or higher with 16 mb up of ram. You can insert unlimited number of employee depending on the memory of the hard disk. Its a full screen GUI and always on top window. Its a very small program can even be store in a usb flash drive. I print a DTR with computed no. of hours and overtime. I has time buzzer setup. Its ideal help for Payroll.