... example, {2,4, –4 25} is a set of numbers, and {{2, 3}, {4, 5} } is a set of sets. SeeINTERSECTION; SET DIFFERENCE; UNION. 4. a data type in Pascal that consists of a group of values of a specifiedtype. ... user interface of Microsoft Office 2007, the part of the screen containing tabs providing access to commands. ribbon bar a row of small icons arranged just below the menu bar of a win-dow. ... side of Boston, Massachusetts,passing through the cities of Needham and Waltham. Route 128 has beenthe home of a number of computer companies, including DigitalEquipment Corporation and Lotus....