20th August 2005, 2:03 PM
It's not always THAT easy. That only works if the os you want to install has a boot disk. Sometimes you have to install some basic OS like DOS or something and browse to the disk, where you can then run an installation program. Not all linux distributions, for example, have boot disks.
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." ~ Charles Babbage (1791-1871)