4 Replies - 16346 Views - Last Post: 28 January 2009 - 05:46 PM

#1 rollerdead  Icon User is offline

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microcomputer , microprocessor and microcontroller

Posted 27 January 2009 - 10:05 AM

hello guys, i need some information about this three type of micro.

what is different between microcomputer, microcontroller and microprocessor ?

and what is related between microcomputer, microcontroller and microprocessor?

i need to understand more about this things...

thanks
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Replies To: microcomputer , microprocessor and microcontroller

#2 Core  Icon User is offline

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Re: microcomputer , microprocessor and microcontroller

Posted 27 January 2009 - 10:24 AM

Well, the actual term 'micro-' when speaking about computers is not often used nowadays.

Obviously, a microcomputer is a small computer (compared to big supercomputers) that has a microprocessor (again, the term 'micro-' in this word is now eliminated and it is just called processor), central processing unit (CPU). Your PC is an example of a microcomputer.

Microcontrollers are computer chips that (if you look at its name it becomes obvious) control something. Microcontrollers usually have a processing unit (which usually runs on a low clock speed), internal memory and input/output elements. Pretty much every electronic device has a microcontroller - starting from a game console or electronic clock and ending with personal computers.

Microprocessor is also called the Central Processing Unit (CPU). A microprocessor is currently working in your PC and it's either from AMD or Intel (or any other processor manufacturer). Basically, a microprocessor is one of the essential elements of a computer, as it handles all the operations a computer performs.
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#3 numerical_jerome  Icon User is offline

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Re: microcomputer , microprocessor and microcontroller

Posted 27 January 2009 - 10:58 PM

A microcontroller is a single chip, containing a microprocessor that has some non-volatile storage, an enlarged cache or dedicated RAM, and (usually) some common peripheral components (like a UART, pwm, or ADC) all on the same chip. [Litterally a "computer on a chip"]

I would also point out that virtually all modern microprocessors have a microcontroller equivalent (you can, for example, buy P4 and PPC microcontrollers), with similar performance specification to their stand alone processor counterparts. However, due to both costs and the small processing demands of applications microcontrollers are used in (running a toatser, car engine, stereo, EKG machine, et cetera, et cetera, et cetera), smaller, lower powered micro controllers tend to be most common.

As a point of clarification, while PCs do have micro controllers in them, their participation tends to be more along the lines of operating the optical drive's motors, while the CPU(s) and GPU handle the actual processing.

-Jerome
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#4 no2pencil  Icon User is offline

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Re: microcomputer , microprocessor and microcontroller

Posted 27 January 2009 - 11:40 PM

View Postrollerdead, on 27 Jan, 2009 - 11:05 AM, said:

what is different between microcomputer, microcontroller and microprocessor ?

and what is related between microcomputer, microcontroller and microprocessor?


Wow. This sounds like a school question.
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#5 jjsaw5  Icon User is offline

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Re: microcomputer , microprocessor and microcontroller

Posted 28 January 2009 - 05:46 PM

View Postno2pencil, on 28 Jan, 2009 - 01:40 AM, said:

View Postrollerdead, on 27 Jan, 2009 - 11:05 AM, said:

what is different between microcomputer, microcontroller and microprocessor ?

and what is related between microcomputer, microcontroller and microprocessor?


Wow. This sounds like a school question.



I agree and i think Google....or books could HELP you to answer these questions, insted of looking for someone to do it for you.
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