IBM 5150 maximum memory?

[Fred Cisin]

On Thu, 24 Apr 2008, Roy J. Tellason wrote:
> I've never been clear as to why it was that we only got 8 slots,  either.
> Though I do have a vague recollection of having seen an ad for some machine
> or other that had something like 12?  Never actually saw one,  though.

It was based on the Apple ][ physical configuration.
Combined with IBM being too big to ever learn from anybody else's
mistakes.