Tuesday, July 2, 2019

Operating System Basics - Learn About Operating System

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Software is a collection of computer programs and data to provide the desired output. Software is categorized into two.

1. System Software
2. Application Software

Operation system (OS) is system software consisting of programs that are loaded with booting the computer. It is responsible for running other applications. The OS acts as an interface between the user, application programs, hardware, and system peripherals, as shown in Figure.

operating system  basics




Application programs are loaded after the Operating system (OS) is installed in order. Users interact with the computer and software through the OS. The OS interprets input given by a user through a keyboard, mouse, or other input devices and takes appropriate action.

Operating systems can be of two types: Network Operating System (NOS) and simple standalone desktop Os ex. Client OS For example:-

Nos                                            Client OS

Windows 2008 server                Windows 7

Windows 2003 server                Windows Vista

Windows 2000 server                Windows XP Professional

UNIX                                         Windows 2000 Professional

Linux                                          Windows 95/98

Netware                                      MS-DOS



The only PC loaded with NOS can act as a server. PC loaded with client OS acts as a client or a standalone system.

Microsoft Operating System

Windows Versions

The combination of Microsoft DOS (Disk Operating system) and Microsoft Windows 3.1x was the most popular operating system until 1995. In 1995, Microsoft released Windows 95, which was then upgraded to windows 98. Windows 95 is a combination of OS as well as GUI. Other operating systems that have adopted a similar approach with advanced features are Microsoft Windows NT, Windows 2000, Windows ME/Windows XP, Windows Vista, and Windows 7. Some of the popular versions of MS Windows and their feature were:

Version and Release Date:- Windows 3.1x (April'92)

Features: It supported long file names, true type font system, and it provided desktop publishing.

Version and Release Date:- Windows 95 (Aug'95)


Features: Virtual Memory features were supported by Windows 95.

Version and Release Date:-  Windows NT 4.0 (July'96)

Features: It was designed to support multi-user, multiprocessing environment, it supports both workstation and server.


Version and Release Date:- Windows server 98 (June'98)

Features: It included new hardware drivers and better support for FAT32

Version and Release Date:- Windows 2000 (Feb'2000)

Features: It supports both server and workstations; Active Directory was one of the best features provided by Windows 2000 server edition.

Version and Release Date:- Windows Me 2000 (Sep'2000)

Features: It allowed upgrade to windows 98 enhanced multimedia and internet features

Version and Release Date:- Windows XP (Aug'2001)

Features: It provided Switch users concept and advanced security features on files and folders

Version and Release Date:- Windows 2003 (April'2003)

Features: It included security features, it provided: manage your server: the wizard who helped users to configure the machine for specific roles

Version and Release Date:- Windows Vista (Nov'2006)

Features: Features like user accounts, Internet Explorer 7, Windows Calendar, Aero was introduced.

Version and Release Date:- Windows 2008 (Feb'2008)

Features: It provides technical security, management, and administrative features

Version and Release Date:- Windows 2009 (July"2009)

Features: It is a faster booting OS, the advance feature of aero, internet explorer 8, Direct Access.

Version and Release Date: Windows 8 (Oct'2012)

Features: Windows 8 is a big change compared to Windows 7. Windows 8 has a standard interface.

Version and Release Date: Windows 10 (July'2015)

Features: Windows 10 start menu is back, but it's live. The best features in Windows 10 window defender. Windows Defender protects your system in your laptop, PC.


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