Computer operating system
- 1. Computer Operating System Eng:Dhanik Maheshwari Civil Engineering Department QUEST Nawabshah
- 2. An operating system is a program designed to run other programs on a computer A computer’s operating system is its most important program It is considered the backbone of a computer, managing both software and hardware resources Introduction to computer operating system
- 3. An operating system, or OS, is a software program that enables the computer hardware to communicate and operate with the computer software Without a computer operating system, a computer would be useless
- 4. GUI - Short for Graphical User Interface, a GUI Operating System contains graphics and icons and is commonly navigated by using a computer mouse Below are some examples of GUI Operating Systems System 7.x,Windows 98,Windows CE Types of computer operating systems
- 5. Multi-user - A multi-user operating system allows for multiple users to use the same computer at the same time and/or different times Below are some examples of multi-user operating systems. Linux , Unix , Windows 2000
- 6. Multiprocessing - An operating system capable of supporting and utilizing more than one computer processes Below are some examples of multiprocessing operating systems Linux , Unix , Windows 2000
- 7. Multitasking - An operating system that is capable of allowing multiple software processes to run at the same time Below are some examples of multitasking operating systems Unix , Windows 2000
- 8. Multithreading - Operating systems that allow different parts of a software program to run concurrently. Below are some examples of multitasking operating systems Linux, Unix, Windows XP
- 9. Operating systems Date of released platform developer Windows XP Professional April 24,2005 IBM / PC Microsoft Macintosh OSX June 9, 2008 Apple Macintosh Apple Microsoft Vista January 30, 2007 IBM / PC Microsoft Fedora May 21 2010 various Red Hat Mac OS X Leopard October 26, 2007 Apple Macintosh Apple Microsoft Windows 1.0 November 20,1985 Xandros Linux - - - Unix March 11,1971 Various Unisys Microsoft Windows 3.1 April, 1992 IBM / PC Microsoft List of operating systems
- 11. Acronym for disk operating system. The term DOS can refer to any operating system, but it is most often used as a shorthand for MS-DOS (Microsoft disk operating system). Originally developed by Microsoft for IBM, MS-DOS was the standard operating system for IBM-compatible personal computers. The initial versions of DOS were very simple and resembled another operating system called CP/M. Subsequent versions have became increasingly sophisticated as they incorporated features of minicomputer operating systems. However, DOS is still a 16-bit operating system and does not support multiple users or multitasking. DOS
- 12. For some time, it has been widely acknowledged that DOS is insufficient for modern computer applications. Microsoft Windows helped alleviate some problems, but still, it sat on top of DOS and relied on DOS for many services. Even Windows 95 sat on top of DOS. Newer operating systems, such as Windows NT and OS/2 Warp, do not rely on DOS to the same extent, although they can execute DOS-based programs.
- 13. A version of the Windows operating system. Windows NT (New Technology) is a 32-bit operating system that supports preemptive multitasking. There are actually two versions of Windows NT: Windows NT Server, designed to act as a server in networks, and Windows NT Workstation for stand- alone or client workstations. Windows NT
- 14. Windows 9x are a series of Microsoft Windows products including Windows 95, Windows 98 and Windows Me. Microsoft began developing Windows 9x at Windows 95, and ended developing Windows 9x at Windows Me. The series lived a life span of five years. Windows 95 is the first product of Windows 9x series. Before Windows 95, earlier versions of Windows were 16-bit operating systems, and many Windows 9x
- 15. Windows XP is a personal computer operating system produced by Microsoft as part of the Windows NT family of operating systems. Development of Windows XP began in the late 1990s, the operating system was released to manufacturing on August 24, 2001, and generally released for retail sale on October 25, 2001. Windows XP was a major advance from the MS- DOS based versions of Windows in security, stability and efficiency due to its use of Windows Windows XP
- 16. It introduced a significantly redesigned graphical user interface and was the first version of Windows to use product activation in an effort to reduce software piracy. Upon its release Windows XP received generally positive reviews, with critics noting increased performance, a more intuitive user interface, improved hardware support, and its expanded multimedia capabilities. It is estimated that at least 400 million copies of
- 17. Windows XP remained popular even after the release of newer versions, particularly due to the poorly received release of its successor Windows Vista. Vista's 2009 successor, Windows 7, only overtook XP in total market share at the end of 2011.
- 18. The Mac OS is an operating system that was designed for the Apple Macintosh computer. It was developed by Apple Inc., who also created Apple I, as well as a number of other more modern products including the iPod, iPhone, and iPad. The main competition to the Mac OS is the Windows operating system, the most popular OS by a large margin. MAC OS
- 19. The first version of the Mac OS, part of the "Classic" Mac OS series, was originally released in the mid-1980s. It did not possess a command line and could only run one application at a time. The first version of the Macintosh operating system to be named "Mac OS" was version 7.6, the most recent version is called Mac OS X.