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Of course, we don't know how the cost was calculated and it was probably a number arrived at after appropriate hand waving. And then someone transcribed some numbers when jotting it down, and this is the "amount worth" published.
Would you like me to search the web for that?
2020 - intel/ms declare bankruptcy. Chinese companies produce all parts and software, computer sent to the US
The problem is not just the assembly cost, which is in fact marginal. The problem is the costs all down the supply chain. All the components inside, say, an Ipod are made in China. All the profits made producing and selling those items stay in China. I don't think you could even produce a computer in the US today. You'd have to get and ship all your parts from Asia. Hard drives, memory, displays, discrete components - all made overseas. The huge support base for producing all electronics have moved overseas. If a $200 Ipod costs Apple $150 in parts, $10 assembly/packaging/shipping and $40 profit, that's still $150 that flowed into Chinese economy - not the US economy.
Prototyping and design used to be done here. It's now easier to get the engineering talent overseas where engineers have access and contact with the people producing the actual parts they need to use in their own products. We've lost the production capability, we're about to lose knowledge about how to even create the devices we invented.
BTW, these days it seems a lot of resumes are searched for key words. If they're hiring a computer scientist - guess what keywords they're going to look for?
From a technical standpoint though, in Windows, you can make a plug-in that will prevent "print screen" from working on/"seeing" certain areas of the screen. Fire up Windows Media player. Start any movie, hit print screen and then see what you got by pasting it into something. You'll notice you'll get the media player window with a nice black box for the content. I also remember Windows being able to do that with IE when they first started their Terraserver project - the imagery was somehow copyrighted and you could look at it, but attempting to copy it or print it resulted in an image with the word copyright repeated over and over and no satellite image.
Of course this won't prevent anyone determined enough to reverse engineer the way the plugin works and then design a workaround. It would however prevent the casual user (probably about 99% of the facebook population) from simply using print-screen or copying the image and mailing it to a friend.
So you're left with the task of proving/disproving the presence of something you and everyone else knows nothing about - much less how to test for the presence of it. Do they affect magnetic fields? Do they emit light? Do they make noise? Do they alter the temperature of the air around them? Are they affected by unlicensed nuclear accelerators? For ghosts, the answer would have to be "maybe". For humans, the answer for every question is "yes" (yes, we do emit very faint light). So if you do detect something, it's almost certain it's not a ghost, but rather a human.
Linux has about a dozen different AV products, commercial as well as free. Wikipedia claims about 800 variants of Linux malware although it does not identify the percentage found in the wild.
Linux has it's roots from Unix which has been the genesis for such fun stuff as rootkits. Who can forget the Morris worm which brought down most Unix systems connected to the Internet in 1988. And now with the ability to install a malware hypervisor onto a machine, it doesn't even matter which OS you run -- no OS is safe.
Company1 - "Yeah, hi, this is Bob at company X - we recently licensed your technology that allows people to use a mouse to interact with a computation unit in a way that allows the computation unit to perform a useful task. We'd like to get the relevant documentation?"
Company2 - "Um, docs. Huh - never thought of that - I mean it's never come up... Wow, I guess you could read the patent application - that's the only docs we got. BTW, would you like to purchase rights to allow the mouse to instruct the computation unit to perform a useless task? We got a special going on this week for that..."