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Please forgive the vagueness of this, but what happened (or happens still, I don't know, haven't looked for years) where main RAM is shared by the video chips? I remember a lot of ads where is was explicit that built in video shared the main memory, resulting in less ram available for normal use. My memory of it was that sellers and or builders were quite upfront about it. Did people who weren't clear about it sue? Or where sellers more honest back then? I realise it can be easily argued to be very different to what these devices now do, but does that set any sort of precedent?