Why don't we use MCUs in PCs ?

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even the mcu has more advantage than the mp y don we use the mcu instead of mp in pcs....

Re: mcu or mp

Well .It seems that you are a beginner .! I suppose that by "mp" you mean CPU . A microcontroller or mcu is a very integrated complete microprocessor system .But it is intended to be use in a well defined application .This means that is totally devoted to a particuliar task .It has just one program that is "loaded" .Is not meant to be used as a user friendly machine .You have to be an engineer to know what you are doing .On the other side .On a pc .any moron can use the machine .Microsoft sells you all kinds of crap that doesn't do anything .But you are happy and think that you are a big shot!. The true of the matter is that MCU are very inexpensive and small systems .The type of unit that you can put in a refrigerator or a vacum cleanner .It is not required to be capable of computing payrolls or download porn .

Re: mcu or mp

sabacharming said:

even the mcu has more advantage than the mp y don we use the mcu instead of mp in pcs....

Click to expand...

The biggest advantage of an MCU in the vast majority (99%) of applications where they're used is that if all the necessary memory and peripherals are on-chip, there's no need for an external address or data bus at all. A PC's processor isn't going to have all the necessary memory and peripherals on-chip, so no advantage there.

Sometimes an MCU may be useful even if not everything can be included on-chip, since on-chip resources may be 'good enough' to eliminate the need for something off-chip. There were some PC's based on things like the NEC V40 which included some on-board timers and such.

One problem all such machines had, though, was that the peripherals on the NEC V40 didn't work the same way as those in popular interface chips. It would probably have been possible for someone to design a microcontroller with an I/O map that mirrored that of the PC, but I'm unaware of anyone having done so.

Nowadays, almost any peripheral function which could usefully integrated into the processor chip could just as easily be integrated into one of the other system controller chips, so there's really not much point to cramming it in with the CPU.

Re: mcu or mp

MCU, MPU, MP, Controller, or SOC are used for same thing
It depends more on the vendor.
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Amr