Otherwise Otherwise we end up with an an undependable undependable and unsecured unsecured system. #n OS must hae built in facilities to proide us some serices to accomplish all these /obs.

#ll these tasks and process must be done by the operating system. We also need to store our data in the system for later references or uses. Tasks of an Operating System We need to use computers as a daily base to perform certain tasks like reading our email, writing a letter or watching a ideo. en today, mobile phones hae their own operating system. Some e$amples of OS are Microsoft Microsoft Windows, *inu$, Macintosh OS + and -'+. Operating systems allow us to operate and maintain the hardware in desired way and and according to our needs. 't proides a human friendly enironment enironm ent for users to e$ecute hisher program. 't is a collection of programs programs that acts as an interface or mediator between the user (user programs) and the computer hardware. Operating System #n operating system (! ( !)) is ystem software. So before we start, let see what an operating system is e$actly. 'n this post we will talk about the Windows !peratin' ystem e#ol$tion and e#ol$tion and its arc%itect$re as arc%itect$re as system software. These special sorts of software consist of programs, interpreter, and languages to control the operation of a computer system. &ut system software refers to the software that enables a computer to function efficiently. #pplication software can perform a specific task, a te$t or image editor such as Microsoft Word or #dobe %hotoshop are some e$ample of #pplication software. !omputer software is categori'ed in Application software and software and ystem software. Windows has been written in Assembly Assembly, C and C++ C++ languages languages and it is simply a graphical user interface (GUI (GUI)) that manages and maintains the users computer resources and components. The first Windows was released in 1985 1985 ( (Windows Windows 1.0) 1.0) and since then till today the Microsoft OS has dominated the personal computer market.

Windows Operating System Architecture Microsoft Windows Operating System System series are one of the most popular operating system among the users.

Mac os architecture pdf