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What is "ARM"?

I've heard about something like this before but I noticed it in CodeBlocks and I was wondering what it was. So I'm assuming it's a platform? But I've heard about it being a chip (assuming it's not the salty kind)? So what is it exactly?
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  1. I find it amusing that Tomshardware Addict doesn't know what the ARM is.
    And it is one of the alternative architectures to x86. Here is a good read:
    http://en.wikipedia.org/wiki/ARM_architecture
  2. So it's pretty much a CPU with an architecture that requires less transistors? So a ARM program can only be ran on a ARM CPU?
  3. Best answer
    It doesn't necessarily require less transistors, that's just how they have been designed so far.

    It's just another architecture. And yes, programs have to be compiled to run on a specific architecture or they send commands to the processor that it will not understand.
  4. Best answer selected by melikepie.
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