Mac sales growth continues to surge ahead of PCs 3 to 1

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As some have noted, this is all a bit misleading as you're comparing two unrelated numbers (growth of Mac sales vs growth of PC sales). It might seem superficially that they are the same thing, but they're not because they have different bases.

If this were restated as total growth of Mac sales as compared to total computer sales in the same class vs total growth of non-Mac sales as compared to total computer sales in the same class, then this chart would be meaningful (and normalised).

Since this chart has unrelated bases AND isn't normalised, it seriously misrepresents reality.

For example: suppose Company A sold 100 computers last year and 200 this year. That's a 100% increase in sales. Now Company B sold 1,000,000 computers last year and 1,001,000 this year. Even though they actually increased their sales by 5x what Company A sold, the increase in sales was only 0.1%.

And for added bonus points - Company C sold 1,000,000 units last year and 999,000 year - a 1% DROP in sales - yet still sold 4,995x as many units as company A.

This is why people should be VERY wary when they see percentages being compared instead of hard numbers. Percentages can be used to say almost anything when unqualified.

I find the .edu numbers baffling. Even though Apple already has a good presence here (disclaimer: I work in HiEd) I still see a higher percentage of students coming in with Apple machines every year. Even many of our computer labs are converted (or in the process of converting) to dual boot iMacs where there used to be separate PC and Mac labs.

I'm still angry about the XServe, though. *grumbles* Discontinuing that definitely won't do any good for continued growth in any market.

Wow, Neat!

All those +ve Apple figures relate to US sales NOT worldwide. When will Apple (Mr. Jobs Sir) realise that the potential for expansion lies not in the US but in the rest of the World. Best place to start ('cos that's where I am) is Europe - a better spread of Apple Stores so people have real access to Apple products sold by real enthusiasts rather than uninterested unmotivated PC biased stores like LeClerc and FNAC and Orange here in France. I know it takes time, but even just a plan would help.

The iPhone/iPad and the Apple Store must have had a major impact in the growth of Mac sales. With all the attention and traffic into Apple Stores, consumers are able to try out the Mac and experience the superior build quality and design of Apple's computers compared to the cheap, nearly disposable PC variants.

so Apple has a 4.3% market share, let's round that to five.

That means that if last year apple sold 50 computers, 'PC' sold 950.

This year apple sold 128% of that, or 64 computers.

'pc' sold 109% of that or, 1035 computers.

Of course Apple's growth is great. However, it is percentage of installations that matter. Apple is gaining in this as well but not nearly as dramatically or they wouldn't spin it as "growth". Still Apple has a lot to be proud of and the explosion of iOS will only fuel Mac sales.

I'm sorry, but that is one ugly-ass graph. I hope it wasn't made in Numbers.

It's all very interesting because it doesn't really matter what percentage of growth Apple's products as compared to the growth of PCs because Apple is doing very well.

It wasn't too long ago when Michael Dell was quoted as saying that Apple should liquidate the company and pay back the shareholders. He should eat his words today since he has tried to make clunky all in one PCs and pastel colored laptops in an attempt to compete unsuccessfully with Apple.

Apple has fallen behind in the education market because PCs have become extremely cheap and school districts are strapped for cash. With falling property values and falling revenues school districts are more concerned with keeping teachers on the payroll rather than the quality of their computers.