Not sure. I thought i knew what it was until i looked it up on wiki. Maybe he should explain what he meant as it could mean anything...
As i understand it laptops wouldn't be an example of vertical integration because the components they use are generic and come from various different sources whereas the Amiga was vertical as the hardware was custom so came from the same company.
vertical integration - think of it as cutting out the middle man.
When Apple made an Apple II computer they buy the 6502 from MOS (which is Commodore), so MOS gets percentage. Also they would purchase a crappy piezo buzzer from Radio Shack and used that for the sound, so Radio Shack gets a percentage.
When Commodore would make a 64 they "buy" the 6510 from MOS (which is Commodore) so they profit twice. Commodore also buys the SID chip from MOS for the sound, cha-ching, Commodore gets paid again...
As a direct effect Commodore is able to sell the 64 for less than the Apple II. As a side effect, Commodore was also able to offer a better product - remember the crappy Apple II buzzer?
Actually, I don't think the Apple II used a Radio Shack piezo buzzer, but it sounded like it did.
They did use a Ensonic chip in the IIgs which, coincidentally, is a company with ties to MOS and the SID.
Commodore acquired MOS by buying a bunch of their goods on credit (which is typical for a company), then being such a slow payer that it made MOS financially shaky. Rather than pay MOS what they owed them, they just outright bought MOS. That is how Jack Tramiel built his vertically integrated company. Pretty shrewd.
Reminds me of a guy who sold the worlds largest computer company an OS that he did not even yet own...
Would they of been better with Jack? Hell ya....