Removed acronyms; some p changes; grammar changes (#28701)
Removed acronyms; some p changes; grammar changes (#28701)

I removed the acronyms from the section headers because you describe everything in the paragraphs that follow.  I added "(IO Device)" to your Input/Output  paragraph for consistency among the different paragraphs.  I moved the IO examples from the header into the paragraph.  I also changed "Input and Output Devices" to "Input/Output Devices" for consistency, as that is how you word it in your CPU paragraph.   Made some grammatical changes.
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