history and development of operating systems
- 1. HISTORY AND DEVELOPMENT OF OPERATING SYSTEMS:
- 2. •PRESENTATION BY: • AYESHA NAZIR CHAUDHRY G1F17BSCS0090 • QURRAT-UL-AIN BUTT G1F16BSCS0102
- 3. HOW?!!
- 4. s , Before Operating System if you wanted to change what the computer was doing, you had to change how the wires were connected. What were computers like before operating systems were invented?
- 5. Later, instructions were given to the computer with punch cards or magnetic tape. If you wanted to run a different program, you had to wipe out the first program from memory and then load another program into memory.
- 6. To run more than one program at a time, you need a "boss" program that controls all the other programs. Such a boss program is called an operating system.
- 7. Microsoft’s MS-DOS was one of the first Operating Systems for Personal Computers (PCs). No mouse. Instead, you had to type a lot of special computer commands.
- 8. In the 1980s, operating systems were developed where you could move a mouse around and click on things instead of typing commands.
- 9. Digital Equipment Corporation created several operating systems for its 16-bit PDP-11 machines, the time- sharing operating systems, and the RSX-11 family of real-time operating systems.
- 10. Beginning in the mid- 1970s, a new class of small computers came onto the marketplace. Featuring 8-bit processors along with rudimentary input and output interfaces and as much RAM as practical, these systems started out as kit- based hobbyist computers but soon evolved into an essential business tool.
- 11. Windows 1.0 was released on November 20, 1985 as the first version of the Microsoft Windows line. It runs as a graphical, 16-bit mult-tasking shell on top of an existing MS- DOS installation
- 12. Windows 2000 is an operating system for use on both client and server computers. It was produced by Microsoft and released to manufacturing on December 15, 1999
- 13. Windows XP (codenamed Whistler) is a personal computer operating system produced by Microsoft The operating system was released to manufacturing on August 24, 2001
- 14. Windows Vista (codenamed is an operating system by Microsoft for use on personal computers, including home and business desktops, laptops, tablet PCs and media center PCs. Development was completed on 8,November 2006
- 15. Windows 7 (codenamed Vienna, formerly Blackcomb) is a personal computer operating system developed by Microsoft. Windows 7 was released to manufacturing on 22 July 2009
- 16. Windows 8 is a personal computer operating system developed by Microsoft as part of the Windows NT family of operating systems. The operating system was released to manufacturing on 1 August 2012
- 17. Windows Phone 8 is the second generation of the Windows Phone mobile operating system from Microsoft. It was released on October 29, 2012, and like its predecessor, it features a flat user interface based on Metro design language
- 18. Windows 10 is a personal computer operating system developed by Microsoft as part of the Windows NT family of operating systems. Officially unveiled in September 2014
- 19. Android is a mobile operating system (OS) based on the Linux kernel and currently developed by Google. With a user interface based on direct manipulation, Android is designed primarily for touchscreen mobile Initially developed by Android,Inc., which Google bought in 2005, Android was unveiled in 2007.
- 20. Operating System: Mac OS X for Desktops and Laptops
- 21. iOS is another type of operating system like ANDROID enables users to use smartphones The main credit of development of iOS’development goes to STEVE JOBS.