When you boot a computer, and all it shows is a black or blank screen with a blinking cursor (it may look like an underscore), then it means the BIOS or UEFI is attempting to boot from a source other ...
If you don't want want people snooping on what you're up to on your computer, then you're in luck. A scientist has revealed how to make your screen invisible - or unreadable - to nosy neighbours.
A computer screen that looks blank to anyone not wearing a pair of special polarising glasses has been developed by a Tokyo-based electronics company, Iizuka Denki Kogyo. The company believes the ...
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