The following are the important features of UNIX/Linux
It is a multi-user multi tasking: Several users can
use the OS/NOS simultaneously for running single or multiple tasks.
Data, directory, process, hard disk etc are treated
as a file. This is sometimes confusing to those familiar with Windows OS,
where devices are treated separately from files and folders.
The directories are in a hierarchical structure. The
"Top" directory is “/”, which is called slash or root.
Every user will have his own directory, called home
UNIX/Linux uses standard TCP/IP protocol for communications and
Unlike Windows, Unix is case-sensitive. For example,
a file named Mydata.txt is different from a file named mydata.txt.
Some commonly used commands in UNIX are listed below:
cd: Change directory
cp: Copy file or directory
ls: Show files in current position
mkdir: Create directory
mv: Move file or directory
pwd: Show current position
rm: Remove file or directory
rmdir Remove directory
man: Display online manual
shutdown: Reboot or turn off machine
Netware is the first NOS to be used for PC LANs. It has multiple client support for multiple
client platforms. Netware 4.x and above uses NDS for authentication. NDS is a
directory service that keeps track of all of the network entities and performs
authentication for them.
recent of Mac OS version is based on a
UNIX kernel, so essentially it is a UNIX server. In addition to Mac clients, a
Mac server can support UNIX clients and Windows clients. Authentication is
handheld through Kerberos and Open Directory. File and print services are
handheld through AppleShare and other open protocols and utilities. Mac OS has
limited application support.
Windows Server uses the same
interface and, to some extent, the same software as the desktop Windows
versions. Earlier versions of Windows did not support Networking. Now, ofcourse,
all Windows OSes support networking. Given below are the Windows OSes that
Though the desktop Windows versions like Win9x support
networking, it is limited to peer-to-peer networking. Windows 2000, and
Windows2003 support client-server computing.
Windows 2003 Server is among the most advanced servers
offered by Microsoft. The important features offered by Windows 2003 Server
include the following:
Terminal Services allows desktop computers to run applications on a
central server, as if they were running locally. This enables centralized
applications deployment, and management.
Web and Application Services
Windows Server 2003 provides a integrated Web server solution. The Web
server can host and serve web sites over a corporate intranet or the Internet.
Windows 2003 Server offers the following security features for
organizations deploying the server:
Public Key Infrastructure
Network Access Protection
Security Configuration Wizard
Networking and Access Technologies
Windows 2003 Server has the following networking features:
DHCP (Dynamic Host Configuration Protocol)
Internet Protocol Security
Supports Internet Protocol Version 6 (IPv6)
Routing and Remote Access
Virtual Private Networks
Windows SharePoint Services:
Windows SharePoint Services offers file sharing and team collaboration
benefits for Windows Server 2003 environments.