From Longman Dictionary of Contemporary EnglishPentiumPen‧ti‧um /ˈpentiəm/ trademark a type of processor (=the central part of a computer that processes information and controls its operations) made by the US company Intel. Pentium processors are used in most of the world's personal computers, and there are several different types, which are described according to how fast they operate a PC with a Pentium 4 processorFrom Longman Business DictionaryPentiumPen‧ti‧um /ˈpentiəm/ (also Pentium chip) noun [countable] trademarkCOMPUTING a type of PROCESSOR (=central CHIP that controls most of a computer’s operations) that allows a computer to process and store information very quickly
