The operating system is the program which manages the hardware inside a computer. It divides the time each program needs to use the CPU. It also assigns disk space and shields data from unauthorized access. It also provides an interface between the applications and the hardware. This allows the program to interact with a wide variety of hardware devices, including printers, Wi-Fi adapters as well www.myopendatablog.com/can-vdr-stand-as-investor-relations-management-software/ as hard disk drives.
A OS also allows multiple software processes to run concurrently on a single processor. This is referred to as multitasking. It also allows the user to communicate with the computer via a GUI (graphical) or command-line interface. The operating system can be a single application that runs in memory, or a collection of programs and libraries on the hard drive that are loaded into memory as required.
Other essential functions of an operating system include error detection. The system constantly monitors input and output in order to detect errors and prevent them from causing further problems. It also is responsible for managing network connections as well as establishing security protocols to defend against unauthorized access.
The OS also stores drivers of devices in a standard format to make identification easier. It also installs and configures drivers when hardware is replaced. In addition the OS can translate a user’s program from high-level language to machine code by using loader and compiler. It can also move the data on a disk if it detects the presence of a bad sector.