The term �MainFrame� brings to mind a giant room of electronic parts that is
a computer, referring to the original CPU cabinet in a computer of the
mid-1960�s. Today, Mainframe refers to a class of ultra-reliable large and
medium-scale servers designed for carrier-class and enterprise-class systems
operations. Mainframes are costly, due to the support of symmetric
multiprocessing (SMP) and dozens of central processors existing within in a
single system. Mainframes are highly scalable. Through the addition of clusters,
high-speed caches and volumes of memory, they connect to terabyte holding data
subsystems.
