This document provides an overview of various PC and network operating systems, detailing their features and market share. It highlights Microsoft Windows as the most popular OS, discusses other systems such as Unix and Linux, and covers different versions of Windows along with embedded operating systems. Additionally, it explores features of network operating systems, including data integrity and security.

1. Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
McGraw-Hill Technology Education
McGraw-Hill Technology Education
Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved.

2. Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
McGraw-Hill Technology Education
Chapter 6B
Survey of PC and
Network Operating
Systems

3. PC Operating Systems
• Microsoft Windows is the most popular
– Installed more than other OS combined
– Installed on about 95% of computers
– Apple and Linux represent the other 5%

4. PC Operating Systems
• DOS
– Disk Operating System
– Single user single-tasking OS
– Command line interface
– 16-bit OS
– Does not require Powerful computer
– A restaurant may still be using employee
scheduling application written for it 10 or 15
years ago

5. DOS Application

6. PC Operating Systems
• Windows NT
– Designed for a powerful system
– 32-bit OS
– Very stable
– It had become too large to run on most of
the PCs used by consumers at the time
– Windows NT Workstation
• Single user multi tasking OS
– Windows NT Server
• Multi user multi tasking OS
• Network operating system

7. PC Operating Systems
• Windows 9x
– 95, 98, and Millennium Edition (Me)
– 32-bit OS
• Supported 16-bit programs well
– Still found in large corporations
– 95 introduced the Start button
– 98 introduced active desktop and IE
– Me(Melinium) improved multimedia
software, support for digital video editing

8. PC Operating Systems
• Windows 2000
– Look of 9x with NT stability
– Optimized for office and small businesses
and developers
– Application software ran very well

9. PC Operating Systems
• Windows XP
– Microsoft’s newest desktop product
– Different look from 2000
– Many different versions
– Digital multimedia support was enhanced
– Communications was enhanced

10. PC Operating Systems
• UNIX
– Runs on all computer types
– Very stable and fast
– Command-line interface
– CAD software, popular for high-powered
workstations.

11. PC Operating Systems
• Linux
– Free or inexpensive version of UNIX
– The biggest nontechnical difference
between UNIX and Linux is price
– 32-bit OS
– Very stable and fast
– Linux released by Red Hat (RHCE)
– Windows GUI(also known as shell)
• Command line interface is available

12. Linux Desktop

13. PC Operating Systems
• Macintosh operating systems
– OS X(ten)
– Although it has a small market share, the
Mac remains the first choice of many
– Very stable and easy
– Only runs on Mac hardware

14. OS X Desktop

15. NOS Features
• Network operating system
• Fast and stable
• Runs on servers
• Multi-user and multitasking OS
• 32- or 64-bit

16. NOS Features
• File and print sharing
– Users access the same files
– Hundreds of users use a printer
– Different OS can interact
– work in a small office, want to share a
printer connected to your desktop computer
with your coworkers, can do this, whether
you are running Windows, Linux, or Mac
OS X

17. NOS Features
• Data integrity
– Backups copies data onto tape
– Network redundancy, such as schemes in
which one network server is a “mirror” of
another server and is available immediately
if the first server fails.
– RAID copies data onto other drives
• Redundant Array of Inexpensive Disks
• Relies on two or more hard drives
• May speed access to data

18. NOS Features
• Data security
– Access to data can be restricted
– Access to server resources is controlled
– Audits can be kept
– If you are connecting to a server to retrieve
files, must have client software that is
allowed to connect

19. Networking Operating Systems
• NT Server
– Same core as NT Workstation
– Security added
– Authenticating users and controlling their
access to network
– Multi user capability added
– RAID support included
– Writing the same data to multiple disks, so
it is preserved in case one disk fails

20. Networking Operating Systems
• Windows 2000 Server
– Same technology as 2000 workstation
– Active Directory (AD)
• Central database of server resources
• Simplifies network management
– Distributed programs supported
– Server Standard Edition (up to 2 processor)
– Advanced Server Edition (up to 4)
– Data Center Edition (up to 32)
• not sold separately, but is sold through
computer manufacturers

21. Networking Operating Systems
• Windows 2003 Server
– Designed to compete with UNIX
– XP like interface
– Better support for XP computers
– MS .NET framework supported
– Distributed programs are supported
– Server Standard Edition
– Data Center Edition

22. Networking Operating Systems
• UNIX for servers
– Oldest NOS in widespread use
– Stable secure and fast
– Main OS for Internet transactions
– Large organizations depend on UNIX
– Insurance, medicine, banking, and
manufacturing etc.

23. Networking Operating Systems
• Linux for servers
– Popular in small businesses
– Stable, fast and inexpensive
– Linux’s popularity is growing

24. Embedded Operating Systems
• Devices have EOS built in
• Cell phones, PDAs
• Stable and fast

25. Embedded Operating Systems
• Windows XP embedded
– Based on Windows XP
– Customized for each device

26. Embedded Operating Systems
• Windows CE(embedded compact)
– Not based on a desktop OS
– Customized for each device
– PDA and cell phones
– For real time environment
– Microsoft Automotive will run in cars

27. Embedded Operating Systems
• Palm OS
– Standard on Palm PDA
– First PDA OS for consumers
– Can be found on cell phones

28. Embedded Operating Systems
• Pocket PC
– From microsoft
– Developed to compete with Palm
– Interacts securely with business networks
– Can control PCs through PC

29. Embedded Operating Systems
• Symbian
– Found in smart cell phones (Nokia and
Sony Ericson)
– Games, Instant Messaging, Internet
– Full color display

30. Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
McGraw-Hill Technology Education
Chapter 6B
End of Chapter