Computersight -

This article outlines how the QWERTY keyboard came into existence.

Windows Security Accounts Manager (SAM) File default location.

This site is for anyone who is worried about their computer getting stolen, and being lost forever. This website is like LoJack, but for computers.

There was a time when all new computers came with a restore disk that could restore the machine back to the factory settings should anything happen to it. What’s happened to this courtesy?

Usually when user discover that his computer (desktop or laptop) is not working any more due to disk error there is a panic moment. But in general there is always a slight chance that you didn’t loose all your files. In my experience I have more than 90% success in recovering damaged disk. It also depends if it is just some bad sectors on disk, or it is some more serious physical damage.

If you have accidentally deleted very important files, than you should get a data recovery software.