AMD AMD has already downsized and is at fighting weight for the next generation. Unfortunately, they are hand to mouth even at the trim fighting weight .... Competing against ARM, not Intel is what is still killing them by inches and as ARM gets better AMD will suffer still more. For AMD to die of starvation next year wouldn't surprise me very much.
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INTEL Intel overall is still making money, even with stuffing those astoundingly huge losses right on down the mobile rabbit hole. Intel has enough money to do this for a while still, but not forever. Good news is Intel can shrink itself drastically more and more and still be bigger than AMD was at their peak size.
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Microsoft Microsoft still makes money off of existing OS products charging corporations and individuals for yearly maintenance. MS is losing market share and will eventually be affected on profitability, but not until folks retire their PC elephants and stop paying for yearly maintenance.
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Apple Apple is stable and healthy, but sales are dropping since they haven't come out with anything really new lately. Still, Apple is doing well enough compared to the rest.
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Google Google really doesn't make chips or hardware (Asus and LG make the hardware and Google buys chipsets from whomever is hot at the moment). Google gives away their software products for free, by and large. What Google makes their money at is selling ads on line, sometimes associated with their browser products, sometimes just outright ad placements that pop up on various web sites around the web. Badu in China is their real competitor right now, and Badu is growing in their home Chinese market to be very large, like Google.
Still, they makes a good bit of money doing ads, and it funds all their other hobbies (which we really appreciate, BTW).