digitalMass at Boston.comElm Square has designed touchscreens with simple graphics and bold colors (to replace ancient machines that had 200 buttons with menu items scrawled in tiny print) networked to kitchen computer screens that can translate orders into Spanish or German. Portuguese is on the way. The new computers require fewer key strokes for every sale, and they show how to make change, with pictures of dollar bills and coins. A Web system lets Shapiro monitor the store remotely, so he can track sales hour by hour, check staffing and customer waiting time, and communicate with managers. Self-service ordering for customers is just around the corner.