See what a difference an eight line x 20 characters per line screen makes. Just look at the screen to verify or fill the order. If necessary, you can page up and down through larger orders. Menus simplify and prompt operations and on-screen programming simplifies programming of menu items and system options. Spot check sales and financial reports by viewing sales information on the screen. The 98 key keyboard is spill resistant and easy to clean. Each location is completely programmable in order to fit menu and function requirements. Program the stores name and menu items easily by typing on an alpha programming overlay. Two RS-232C ports and IRC are available on every SAM4s ER-650! The ER-650 stores detailed sales journal in memory for immediate on-screen review, or printing at the end of the day.