Operating Systems Uncovered

As you can see, the operating system technology has evolved
and is continuing to evolve. It seems like Microsoft is always coming
out with a new and better operating system which leads people to
wonder whether or not the system they are currently using is really
the best one.
It can be confusing. But it doesn’t have to be. In the pages of
this book, we’ll explore operating system in depth. Yo
they do, how they work, and what needs specific systems can
meet. Ultimately, the choice is a matter of preference, but it helps to
be informed on what you are really getting when choosing an OS.
We’ll show you operating systems uncovered, so read on!


Table of Contents
Introduction 3
What is an Operating System 4
History of Operating Systems 6
What an Operating System Does 8
Process Management 9
Memory Management 13
Disk and File Systems 16
Networking 16
Security 16
Internal Security 18
External Security 18
Graphical User Interface 19
Device Drivers 19
Application Interface 20
Microsoft Windows 22
Mac OS 29
UNIX 33
Linux 35
GNU 37
Other Operating Systems 38
Installing an Operating System 39
Defining the Processes 43
Cache 43
Virtual Memory 48
System Resources 50
RAM 51
Computer Memory 55
Conclusion 60