One of the most effective methods for main system security and integrity is always to make use of simply free program. For example , applying free operating systems are a whole lot safer than using desktop computers that happen to be protected by simply expensive operating systems and so are more easily and often updated. Although operating systems perform cost a lot, they may be extremely affordable for firms, as they could be made portable. Although desktop systems are much a reduced amount of portable, they are really still portable, but require less maintenance, as well as having fewer programs available.