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operating systems 6


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  • 1. Quiz BY Paola CabreraMarielos Contreras Daniela JuarezMadeline Vasquez
  • 2. definition• Is a set of programs that manage computer hardware resources and provide common services for application software. The operating system is a vital component of the system software in a computer system.
  • 3. kemelIs the main component of most computer operating systems; it is a bridge between applications and the actual data processing done at the hardware level
  • 4. • The most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs.
  • 5. Program executionso that an application programcan interact with the hardwareonly by obeying rules andprocedures programmed into theoperating system Executing anapplication program involves thecreation of a process by theoperating system kernel whichassigns memory space and otherresources.
  • 6. MemorymanagementAmong other things, amultiprogramming operatingsystem kernel must beresponsible for managing allsystem memory which iscurrently in use by programs.This ensures that a programdoes not interfere with memoryalready in use by anotherprogram. Since programs timeshare, each program must haveindependent access to memory.
  • 7. Virtual memoryThe use of virtual memoryaddressing means that thekernel can choose whatmemory each program mayuse at any given time,allowing the operatingsystem to use the samememory locations formultiple tasks.
  • 8. multaskingrefers to the running ofmultiple independentcomputer programs onthe same computer;giving the appearancethat it is performing thetasks at the same time
  • 9. Disk Access and filesystems Access to data stored on disks is a central feature of all operating systems. Computers store data on disks using files, which are structured in specific ways in order to allow for faster access
  • 10. Device driversis a specific typeof computersoftwaredeveloped toallow interactionwith hardwaredevices.
  • 11. networking Currently most operating systems support a variety of networking protocols, hardware, and applications for using them
  • 12. yA computer being securedepends on a number oftechnologies workingproperly. A modernoperating system providesaccess to a number ofresources, which areavailable to software runningon the system, and toexternal devices likenetworks via the kernel.
  • 13. Graphical userinterfaces Most of the modern computer systems support graphical user interfaces , and often include them. In some computer systems, such as the original implementation of Mac OS, the GUI is integrated into the kernel.
  • 14. • Windows• Linux• Android• Microsoft• Mac OS X
  • 15. • The functions of an operating system are:• Are like the systems tools , that are the programs that are used to maintain parts of the system.• A set of fuctions wich programs use to perform specifc task specially relating to interfacing with computer system components.
  • 16. • Operating systems that create a link between users and the applications form the core of computer systems. An OS dissociates the programs from the hardware and simplifies resource management.
  • 17. Software for an operating system •An operating system (OS) is a set of programs that manage computerhardware resources and provide common services for application software The operating system is a vital component of the system software in a computersystem. Application programs require an operating system which are usuallyseparate programs, but can be combined in simple systems.
  • 18. Examples of OS• Unix & Unix Like• BDS & decendents• Mac OS-X• Linux & GNU• Google Chroome OS• Microsoft Windows• ETC..
  • 19. About the Video:• The video talks about O.S & about a fight between them because they want to domine the world of O.S negociations.It also tell us some information about O.S