An operating system

is the chief hardware unit in a computer.
is loaded into the computer each time it needs to carry out an operation.
ensures that programs will not run on the computer at the same time.
allocates resources like memory to programs that are running.
all of the above.

Respuesta :

Answer: Allotment of resources to the running programs

Explanation:

Operating system is the software sectors of the computing device that helps in control and management of software, hardware and programming functions. It helps in allotment of requirements to same time or individually running programs through coordination.

  • Example-mac-OS, Linux,Microsoft Windows etc.
  • Other options are incorrect because operating system is not activates in the computer unit for every single execution. It is a software unit and does not monitors program execution for same time period.