operating system and windows installation

8/7/2019 Operating system and windows installation

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Operating systemOperating system

windows XP installationwindows XP installation


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An Operating System?An Operating System?

y What is an Operating System?

y An interface between users and hardware

y

A program that acts as an intermediarybetween a user of a computer and the

computer hardware.


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LAYERS OF A SYSTEMLAYERS OF A SYSTEM


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y What is the purpose of an operating

system?

y An environment "architecture

y To provide an environment in which a user

can execute programs.


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y What are the goals of an Operating

System?

y Allows convenient & efficient usage to

make the computer system convenient to use

(hides the tedious stuff). &

y Efficient to use (parallel activities, avoids

wasted cycles)


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y What are the goals of an Operating

System?

y Provides information protection

y Gives each user a slice of the resources

y Acts as a control program.


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y Hardware :

y provides basic computing resources (CPU, memory, I/Odevices).

y Operating system:

y controls & coordinates the use of the hardware among thevariousapplication programs for the various users.

y Applications programs :

y Define the ways in which the system resources are used tosolve the computing problems of the users (compilers,

database systems, video games, business programs).y Users:

y (people, machines, other computers).


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Parts of an Operating SystemParts of an Operating System

y Memory Management

y IO Management

y CPU Scheduling

y IPCy MultiTasking/Multiprogramming

y File System

y

Multimedia Supporty GUI (X Windows, MS Win)

y Internet Browser


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MEMORY / STORAGEMEMORY / STORAGE

y Very fast storageis very

expensive.

y S

o the OperatingS

ystem manages ahierarchy of storage devices in order to make

the best use of resources. In fact, considerable

effort goes into this support.


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OPERATING SYSTEMOPERATING SYSTEM

OVERVIEWOVERVIEW

y Some Characteristics include:

y Time Sharing: Multiprogramming

environmentthat's also interactive.

y Multiprocessing: Tightly coupled

systems thatcommunicate via shared

memory. Used for scientific applications.

Used for speed improvement by puttingtogether a number of offtheshelf

processors.


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OPERATING SYSTEMOPERATING SYSTEM

OVERVIEWOVERVIEW

y Distributed Systems:

y Loosely coupled systems thatcommunicate via message passing.

Advantages include resource sharing,speed up, reliability, communication.

y Real Time Systems:

y Rapid response time is maincharacteristic. Used in control ofapplications where rapid response to astimulus is essential.


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Step by step installationof O/SStep by step installationof O/S

y Operating system installation

y Configuration

y Driver software installation

y Network configuration


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y If you have to make the new Installation

of Windows XP. You can use this as guide

lines for the installation, these slides are

brief and step by step.

y I am assuming that your system is able to

boot from CDROM.

y If it is not then it can be set in BIOS tomake CDROM is 1st Bootable device.


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y Check in your BIOS that Booting from

CDROM is enabled or first try to Boot

from CDROM is Enabled.

y Insert your licensed CD of Windows

XP,Windows 2000

y Reset the Computer and you will see the

first Post screen.


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y After a brief delay, the typical Microsoft

"blue Installation screen is displayed,

with "Windows Setup" displayed at the

top and at the bottom of the screen the

information, that "Setup is loading Files

(loading all type of device drivers):


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y It will finally state :

Setup is starting Windows & will display

after a short delay the Windows XP

Professional Setup screen :


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y If you install XP into an already existing

partition, you have additional options to

leave the current disk formatting intact).

Select the type of disk formatting : FAT orNTFS

y FAT: Possible to access from a DOS-boot

floppy, but limited to max. 4 GByte withvery inefficient file-storage (cluster-size of

64 KByte), no Security features.


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y NTFS: Not accessible from a DOS-bootfloppy, but NOT limited in size and usingan efficient filestorage with a small

cluster-size, able to use File-SystemSecurity features.

y Windows XP requires a lot of disk-spacefor itself, you should use at least a 4

G.Byte partition. I suggest to use NTFS :make your choice (highlight) and select itby pressing ENTER.


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y You can adjust regional settings forexample if you install an English version ofWindows XP in a different country and

the keyboard layout/language is not thesame language as your copy of WindowsXP, you should use the button"Customize.. and configure the proper

keyboard, to make sure that you canenter in the following steps of thesetup/installation properly the information


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y Based on the organization (define above),Setup creates a name for your computer,with complex name to make sure that thename will be unique in a network configuration.

Since this name will be used later inside theMy Network places,y Change it to an easy to understand , but

UNIQUE name (like : LABPC2,LABPC3 etc

).y If you enter a password for theAdministratorAccount, make sure that youremember it (to be save, write it down ! ).


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Windows Installed NowWindows Installed Now

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