ABSTRACT
In the microprocessor's chip, additional circuits can be introduced for unique purposes to execute particular tasks or to carry out numerical operations to offload work from the main processor. Then the CPU can work faster. To make the most of mainframe CPU time, I/O responsibilities are assigned to other systems called Input/Output channels. The central computer doesn’t require any Input / Output processing, but simply sets the constraint for the input or output operation and then signals the channel processor to perform the entire operation. By dedicating relatively simple sub-processors to time-consuming formatting and I/O processing, the overall system performance has been improved. We can use the treadmill for extra work while the engine is running. Therefore, the engine is used more efficiently. Likewise, an additional processor i.e., co-processor handles the math part of the job when we run complex applications. Co-processors for the floating point arithmetic operation first appeared in the desktop computers in the 1970s and it became popular whole of the 1980s and early 1990s. Earlier generations used 16-bit and 8-bit processor software to perform the FPU arithmetic. When the co-processor supports, floating point calculations that can be perform much faster. The math co-processors are common adoption for computer-aided designing (CAD) users and the scientific and the engineering computer software. Some of the Floating-Point Units, like AMD 9511, the Intel 8231/8232 and Waitek FPU, are considered peripherals, while others such as Intel 8087, Motorola 68881 are tightly integrated. than the processor.
