CS201
Lecture 8
Personal Vs. Network Operating System:
Personal
or Desktop Operating System: For Desktop PCs. Example: Windows, Linux etc.
Network or Server Operating System: Installed in Server. Example: Novell NetWare, Windows NT etc.
Figure
6-10 from book
When
you boot a PC connected to a network, the network typically displays a logon
dialog box. You have two options in that dialog box: you can log into the local
computer and not connect to network or you can connect to network.
Advantages
of connecting to a network: Share devices, share memory etc.
Different types of Operating Systems:
Windows: There are many different
versions of Windows such as: Windows 3.1, Windows 95, Windows 98, Windows Me,
Windows NT, Windows XP etc.
Each newer version featured more improved multimedia capabilities, better system protection, faster booting process, more internet ready activities and games, more options for customizing the desktop interface, improved support for DVD and USB devices etc.
Mac
OS:
Macintosh Operating System.
UNIX: Can support Desktop PC or
Server. UNIX is built for any framework
of chips.
Linux: is a version of UNIX. It
was released as freeware software. So the source code is available to users who
can modify it according to their needs. Some companies have commercialized
Linux. Some examples of Linux commercial software are Red Hat, SCO etc.
Utility Programs:
Antivirus
Programs:
Antivirus program should be setup to run the entire time the PC is on and
perform full system scan periodically.
Diagnostic
and Disk management Programs:
Diagnostic Programs evaluate your system, looking for problems and making recommendation.
Disk
Management Programs diagnose and repair programs related to hard drive.
Example: Disk Defragmentor
Diagnose
and Disk Management Utilities can perform tasks such as checking windows
registry for errors, cleaning out extra system files that are no longer needed,
checking hard drive for errors etc.
Uninstall
Utilities:
Programs should be deleted using these utilities. Otherwise a lot of data may
store in the disk over the time. Example: Add Remove Software option in your
control panel
File
Compression Programs: WinZip.