20 CORE FUNCTION OF OPERATING SYSTEM
- Operating system is the system that makes the computer works.
- Operating system managed the order in computer that the early task must be complete before the other is being run.
- It helps to run computer software and hardware.
- It controls the backing store and peripherals such as disk drives and printers
- It give the interface between computer and users such as the graphical user interface(GUI) .
- Operating system make us can transfer data from computer to secondary storage.
- It recognized input and sending output.
- It help to track files and directory that we do not have to find our document manually and save our time.
- It is responsible for security that other user that is unauthorized cannot get to the systems .
- It deals with errors and user instructions.
- It organizes the use of memory between programs
- It organizes processing time between programs and users
- It organizes priorities between program and users
- It handle the details of the operation of the hardware.
- It acts as a link between applications and hardware, and to allow you to manage resources, files and such.
- It controls the memory and graphics and sound cards and also used to access memory and do stuff with it.
- It is what allows the computer to boot up and process all other commands and programs.
- Establishment and enforcement of a priority system. That is, it determines and maintains the order in which jobs are to be executed in the computer system.
- It is automatic transition from job to job as directed by special control statements.
- It management the processor that the operating system is responsible for managing allocation of the processor between the different programmes using a scheduling algorithm.
- It manage the random access memory that is responsible for managing the memory space allocated to each application and, where relevant, to each user.
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