The microprocessor mi486 also called the 80486 or the 486 was invented
in 1989 by Intel(Encarta 95). Like its 80386 predecessor, the 486 is a
full-bit processor with 32-bit registers, 32-bit data bus, and 32-bit
addressing. It includes several enhancements, however, including a
built-in cache controller, the built-in equivalent of an 80387 floating-
point coprocessor, and provisions for multiprocessing. In addition, the
486 uses a 'pipeline' execution scheme that breaks instructions into
multiple stages, resulting in much higher performance for many common
data and integer math operations.
In conclusion it is evident by the following that microprocessors are
developing at leaps and bounds and it is not surprising that if by the
time it hits the teacher's desk or by the time you read this the next
superchip will be developed(Encarta 95).
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