Executive Services
Executive Services is simply a label given to a diverse set of components that provide the basics of an operating system. These basic services offered by the kernel executive include the following:
Virtual Memory Manager—This component of the Executive is responsible for managing the 4GB virtual address space for each process, as well as paging in and out of physical memory all the pages of memory the operating system or an application needs at any particular time.
Local Procedure Call Facility—This component is responsible for interprocess communications. This component is necessary because each process uses the same virtual address space.
Process Manager—When it comes time to start or shut down a process, this component of ...
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