As CPU design evolved into using faster local buses and slower peripheral buses, Intel adopted the dual independent bus (DIB) terminology, using the external front-side bus to the main system memory, and the internal back-side bus between one or more CPUs and the CPU caches. This was introduced in the Pentium Pro and Pentium II products in the mid to late 1990s.
The primary bus for communicating data between the CPU and main memory and input and output devices is called the front-side bus, and the back-side bus accesses the level 2 cache. Modern personal and server computers use higher-performance interconnection technologies such as HyperTransport and Intel QuickPath Interconnect, while the system bus architecture continued to be used on simpler embedded microprocessors. The systems bus can even be internal to a single integrated circuit, producing a system-on-a-chip. Examples include AMBA, CoreConnect, and Wishbone.
Read more about this topic: System Bus
Famous quotes containing the words dual, independent and/or bus:
“Thee for my recitative,
Thee in the driving storm even as now, the snow, the winter-day
declining,
Thee in thy panoply, thy measur’d dual throbbing and thy beat
convulsive,
Thy black cylindric body, golden brass and silvery steel,”
—Walt Whitman (1819–1892)
“Milton’s the prince of poets—so we say;
A little heavy, but no less divine:
An independent being in his day—”
—George Gordon Noel Byron (1788–1824)
“There was an old man from Darjeeling
Who got on a bus bound for Ealing.
It said at the door,
“Please don’t spit on the floor,”
So he carefully spat on the ceiling.”
—Anonymous.