evolution in operating systems

8/3/2019 Evolution in Operating Systems

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EVOLUTION IN OPERATING

SYSTEMS

JOHNVICTOR KIRAGURI

CS282-2764/07


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History of Windows

In 1975, Gates and Allen form apartnership called Microsoft.

Microsoft visiona computer

on every desktop and in everyhome. During the next years,

Microsoft begins to change the

ways we work.


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Evolution of the Windows

In 1981 IBM ships PC running MS-DOS, itintroduces a whole new language to thegeneral public.MS-DOS is effective, but also proves difficult

to understand for many people. There has tobe a better way to build an operating system

1982-1985: windows 1.0 is

introduced. It includes GUI andcomes loaded with extra

components such as MS-DOS file

management, Paint, Windows

Writer, Notepad, Calculator, and

a calendar, card file, and clock


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1987

1992:Windows 2.0 comes to life

It includes: desktop icons and expanded

memory

Control Panel makes its first appearance in

Windows 2.0.

19901994: Windows 3.0Windows NT

offers better performance, advancedgraphics with 16 colors, and improved

icons also Program Manager, File

Manager, and Print Manager are

introduced


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Windows 95 is the upgrade to these operating

systems. To run Windows 95, you need a PC with a

386DX or higher processor (486 recommended) andat least 4 MB of RAM (8 MB of RAM recommended).

Its available in 12 languages.

features the first appearance of the Start menu,

taskbar, and minimize, maximize, and close buttons

on each window.it has built-in Internet support, dial-up networking,

and new Plug and Play capabilities that make it easy

to install hardware and software. The 32-bit

operating system also offers enhanced multimedia

capabilities, more powerful features for mobile

computing, and integrated networking.

WINDOWS 95


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19982000:

Windows 98, Windows 2000, Windows Me

Windows 98

the last version based onMS-DOS.

improvements :

ability to open & close

programs more quickly,

support for reading DVD

discs &USB devices.

the Quick Launch bar

Windows MeThe Last to be based on

Win95code base.

Improvements:

System Restore

Better networking and

multimedia capabilities

Windows 2000

Based on WinNT

Workstation 4.0 code

base

Plug & Play hardware,

advanced networking

& wireless products,

IEEE 1394 devices,

infrared devices.


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Launched in October 2001

Key Features include:

remote desktop support,

an encrypting file system

system restore

advanced networking features.

Key enhancements for mobile users include:

wireless 802.1x networking support,

Windows Messenger,

Remote Assistance.

one of its best-selling products.

Windows Xp

Win XP 64-bit Edition (2001) is thefirst Microsoft OS designed for

operating 64-bit processors

Win XP Media Center Edition

(2002) for computing and

entertainment

Win XP Tablet PC Edition (2002)


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Windows Vista

Bit Locker Drive Encryption provides betterdata protection

enhancements to Windows Media Player

redesigned Start button makes its first

appearance in Windows Vista

the strongest security system


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