The Spacecraft Operating & Management System (S/COMS) was a computer system used aboard many 22nd century United Earth spacecraft and stations, such as the NX-classEnterprise NX-01. It used a combination of touch and physical controls for operation, and often displayed data in several separate panes or windows on screen.
During the first season of the series, many S/COMS computer screens on that ship featured a distinctive column of rectangular status icons on the right side. As the series progressed, a second, and eventually a third column of status icons were added, as the colors of those icons became stronger. Episodes set in the future of the show's main timeline had screens with even more columns of icons. This was intended to imply a technological progression leading toward the blinking icon display that dominated the bridge of Kirk'sEnterprise in the original series, set a century after the events of Enterprise. (Star Trek Encyclopedia (4th ed., vol. 2 M-Z, p. 244))