... 'copyrighted' it means that it is protected by one or various laws. These may state (a) Its illegal to make a copy of a certain software and then give it away to another person/friend; (b) Software may not be used in a network or on multiple computers without a license to do so; and (c) Code ... may not be extracted from the software in order to create one of your own, to later be sold. Virus A virus is a program or programming code that replicates itself in order to cause damage to a computer system. It usually attaches itself to files and may cause ... computers through email attachmen...

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