Usually this is done using some type of
storage device, such as a hard disk drive, that has been formatted with a particular
type of file system that organizes the information in an easily retrievable format.
4 Chapter 1: Introducing Linux
?– Security The operating system is responsible for providing a degree of
security for the data it hosts. The system administrator can create rules and
grant rights that determine who can access what information. Some operating
systems, such as Linux and Windows 2000/XP, do this job very well. Others,
such as DOS or Windows 98, provide only a very minimal level of security.
?– Connectivity The operating system manages connectivity between
computer systems using a variety of network media and interfaces, including
infrared, Ethernet, RS-232, and wireless.
Believe it or not, I frequently encounter people who don??™t understand the role Linux
plays in a computer system. They are under the mistaken impression that Linux is some
kind of killer application that they can run under Windows on their workstation.
This is mainly due to the fact that most users in recent years have grown up using
Microsoft Windows on their computers. Their home computer came with Windows
bundled on it; their computer at work probably runs Windows as well.
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