Presented By:Sajid KhanECN 1st Sem

Presented to:Miss. Krupali Jhala Mam

A Presentation On

Contents

Introduction History Why OS Structure of OS Services Types DOS Win 95

Win 98 Win 2000 Win XP Win 7 Linux Unix Window versus

Linux

Introduction

An operating system is the set of programs that controls a computer Or the software that controls the hardware.

Such as - UNIX, MS-DOS, Windows, Windows/NT, MacOS etc.

History

The 1940's - First Generations The 1950's - Second Generation The 1960's - Third Generation Fourth Generation

Why Operating System

To hide details of hardware Manage resources Provide a effective user interface Provide platform for applications 

Structure of OS

Process Management Main-Memory Management File Management I/O System Management Secondary-Storage Management Protection System Command Interpreter System

OS Services

Program Execution I/O Operations File System Manipulation Communications Error Detection

Some Operating Systems

MS-DOS Windows 95 Windows 98 Windows 2000 Windows XP Windows 7 Unix Linux

MS-DOS MS-DOS stand for

Microsoft-Disk Operating System which is used for operating the system.

The main functions of DOS are to manage disk files, allocate system resources

according to the requirement.

Features of DOS

Single user single task OS. Also comes along with Windows. Command base OS.

System Requirement

Minimum 256 KB of RAM. 360 KB of Floppy Drive.

Windows 95

It is the entry point to a 32-bit operating environment with less set of hardware requirements. It has more compatibility with other software.

Graphical User Interface Start Button Windows Explorer Long File Names Shortcuts Easy Internet Access Software Compatibility Find Utility

Features of Win 95

A computer with 386 or higher processor

4 Megabytes of RAM or higher 40 MB Hard disk space.

System Requirement

Windows 98 is a graphical operating system by Microsoft.

It is the second major release in the Windows 9x line of operating systems.

Windows 98

Multiple Display Support  System File Checker Utility Windows Tune-Up Wizard Built-in Networking Plug and Play hardware and software New Background Properties Supports USB

Features of Win 98 :-

A computer with 486 or higher processor

24 Megabytes of RAM or higher 225 MB Hard disk space.

System Requirement

Windows 2000 Is based of the Windows NT Kernel and is sometimes referred to as Windows NT 5.0. Windows 2000 has a range of multilingual features that make it very useful for anyone involved with more than one language.

Windows 2000

DVD support Large Support for your devices Hibernation Auto Correct Net Meeting Supports NTFS

Features of Win 2000

133 MHz or more Pentium microprocessor.

32 MB RAM is the minimum 4 GB is the maximum.

CD drive or DVD drive 650 MB of Hard disk space.

System Requirement

Windows XP is the second most popular version of Windows.

Which is The NT-based versions of Windows, which are programmed in C, C++, and assembly.

The name "XP" is short for "eXPerience.

Windows XP

Less Crashing Treats a CD-RW like a real drive System Restore AutoPlay Software Restriction Policies Windows Security Center Bluetooth support

Features of Windows XP

Pentium 233-megahertz 64 MB RAM CD drive or DVD drive 1.5 GB of Hard disk space. Sound Card

System Requirement

Windows 7 is the latest release 64 bit OS of Microsoft, a series of including home and business Desktop, Laptop, Notepad, Tablet PCs Windows 7 was released to manufacturing on July 22, 2009, and reached general retailavailability worldwide

Windows 7

Thumbnail previews AppLocker Boot performance Automatic Desktop Wallpaper Shuffling Libraries Make File Management Easy

Features of Windows 7

As an open operating system,Linux is developed collaboratively.

Linux

Features of Linux Cost Security Little Viruses Customizable Totally Secure

Problems With Linux

Understanding Compatibility Alternative Programs

Multi-user Multitasking More stable Leader in serving the Web Portable

Unix

Linux vs Windows

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Price Ease Reliable S/ w S/ w Cost Secure Support

Linux Windows

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