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Microcontroller and System-on-a-chip are very distinct product areas in general, so I don't think a merge is a good idea.
From memory (been involved for a while in this field) 'system on a chip' referring to all-in-one microprocessors didn't really come into use before it was used to denote chips which are capable of running large embedded systems comparable to desktop ones.
The capability of accessing external RAM, or enough onboard RAM to run large operating systems - vxworks, Windows, WinCE, linux, ... is pretty much the defining aspect of SoC used in the computing sense.
Microcontroller is rarely used to refer to (for example) 500MHz 128MB SoC chips.
Both articles need lots of copy-editing, as there is that plague of many wikipedia articles - too many not-wrong facts - but merging them isn't the answer.
These two paragraphs seem to contradict each other:
SoC designs usually consume less power and have a lower cost and higher reliability than the multi-chip systems that they replace. And with fewer packages in the system, assembly costs are reduced as well.
However, like most VLSI designs, the total cost is higher for one large chip than for the same functionality distributed over several smaller chips, because of lower yields and higher NRE costs.
Is the total cost somehow lower and higher? Or is there really a contradiction here? Shades97 (talk) 00:08, 8 May 2012 (UTC)
The following discussion is an archived discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review. No further edits should be made to this section.
The result of the move request was: Not moved. Nathan Johnson (talk) 17:47, 29 May 2013 (UTC)
Oppose – system-on-chip is an adjective form, as in "system-on-chip architecture", "system-on-chip testing", "system-on-chip simulations", etc. We prefer noun titles; system on a chip is also found in both noun and hyphenated (adjective) forms, but I think is probably the more common, or at least more meaningful, noun form. Many sources do mix this up, but we don't need to be among them. And WP:COMMONAME is about proper names, not about this. Dicklyon (talk) 04:10, 24 May 2013 (UTC)
Oppose although probably the SoC form is quite common, do not see any overwhelming reason to move away from the more accurate and fully descriptive name as it already is. Agree with Dick. W Nowicki (talk) 22:37, 28 May 2013 (UTC)
The above discussion is preserved as an archive of a requested move. Please do not modify it. Subsequent comments should be made in a new section on this talk page or in a move review. No further edits should be made to this section.