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A math coprocessor is a chip that handles mathematical calculations in a computer, often used for CAD. It is now built into CPUs, allowing the CPU to transfer calculations to it and keep multiple processes running. It is similar to a GPU and improves performance in math-intensive applications. Its actions are not visible but improve performance when present.
A math coprocessor is a computer chip that handles floating point operations and mathematical calculations in a computer. In early PCs, this chip was separate and often optional, and was mostly used in computers where Computer Aided Design (CAD) was the primary focus. In today’s computers, it is usually built into the CPU, allowing the central processor to transfer math calculations to this chip. This helps the CPU keep multiple processes running simultaneously.
Applications on a PC, such as a CAD program or even a spreadsheet, that deal with floating point units (FPUs) and calculations stream back to this coprocessor to assist in performing these calculations. This leaves the CPU more available for operating system tasks and overall PC management.
The math coprocessor can be likened to a computer’s graphics processing unit (GPU), a separate card that handles graphics rendering and can improve performance in graphics-intensive applications, such as games. The coprocessor, while not as expensive nor as noticeable in most PCs, is the workhorse of the chipset for math calculations. Considering that most of a computer’s actions are mathematical or binary, it plays a very important role, even though it is usually invisible or unnoticed by any computer user.
Since newer computers include this component as part of the CPU, its actions are not visible except through overall CPU monitoring. While still optional, being part of the overall CPU helps performance because programs that can use these functions will do so without user intervention. Comparing the performance of a spreadsheet on two computers, one with and one without a math coprocessor, should show a dramatic improvement in performance where the chip is present, assuming the CPU chip speeds are the same.
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