Meaning of PENTIUM in English

Pen ‧ ti ‧ um /ˈpentiəm/ BrE AmE 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 processor

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.