operating systems
- 1. Quiz BY Paola Cabrera Marielos Contreras Daniela Juarez Madeline 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. kemel Is 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 execution so that an application program can interact with the hardware only by obeying rules and procedures programmed into the operating system Executing an application program involves the creation of a process by the operating system kernel which assigns memory space and other resources.
- 6. Memory management Among other things, a multiprogramming operating system kernel must be responsible for managing all system memory which is currently in use by programs. This ensures that a program does not interfere with memory already in use by another program. Since programs time share, each program must have independent access to memory.
- 7. Virtual memory The use of virtual memory addressing means that the kernel can choose what memory each program may use at any given time, allowing the operating system to use the same memory locations for multiple tasks.
- 8. multasking refers to the running of multiple independent computer programs on the same computer; giving the appearance that it is performing the tasks at the same time
- 9. Disk Access and file systems 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 drivers is a specific type of computer software developed to allow interaction with hardware devices.
- 11. networking Currently most operating systems support a variety of networking protocols, hardware, and applications for using them
- 12. y A computer being secure depends on a number of technologies working properly. A modern operating system provides access to a number of resources, which are available to software running on the system, and to external devices like networks via the kernel.
- 13. Graphical user interfaces 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.
- 18. Software for an operating system •An operating system (OS) 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. Application programs require an operating system which are usually separate programs, but can be combined in simple systems.
- 19. Examples of OS • Unix & Unix Like • BDS & decendents • Mac OS-X • Linux & GNU • Google Chroome OS • Microsoft Windows • ETC..
- 20. 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