The differences between a processor and a co-processor

The differences between a processor and a co-processor

The processor takes care of all the major processing and the co-processor or the auxiliary processor unit takes care of some other things like arithmetic calculations or graphics to allow the main processor to work on more difficult tasks. This results to faster system processing and better overall performance of the computer if both processors are present. These days there are new processors that employ a main processor and a co-processor which perform really well based on benchmarks. This is the advancement of technology, we can only imagine what the future has in store for everyone that does a lot of computing.

The differences between a processor and a co-processor

A coprocessor is a special set or group of circuits in a microprocessor chip designed to manipulate numbers or perform specialized function much quicker than the basic microprocessor circuits. It is a processor used to enhance the functions of the primary processor or the CPU. Processes performed by the coprocessor may include encryption, signal processing, string processing, floating point arithmetic, graphics, or input/output interfacing with peripheral devices.

The coprocessor offloads specialized processing operations thus lowering down the burden or stress on the basic microprocessor circuitry allowing it to work at optimum speed. Back in the early days of computer, the coprocessor is separated from the main microprocessor physically. When Motorola 68000 series and Intel Pentium were introduced, the coprocessor became a physical part of the microprocessor chip.

Other names for the coprocessor are FPU or floating-point unit, math coprocessor, or numeric coprocessor. Several coprocessors are still available as separate chips or circuit cards. They are designed for particular applications like high-end graphics, broadband signal processing, and encryption/decryption.