Operating Systems - Research Article from Macmillan Science Library: Computer Sciences

This encyclopedia article consists of approximately 6 pages of information about Operating Systems.
This section contains 1,618 words
(approx. 6 pages at 300 words per page)
Buy the Operating Systems Encyclopedia Article

Responsibilities and Relationships

These virtual managers must do more than perform their individual tasks. They must also be able to work harmoniously with every other manager. For example, they must be able to monitor their resources continuously, enforce the policies that determine who gets what, when, and how much, allocate their resources when it is appropriate, and de-allocate their resources—reclaim them—when appropriate.

The memory manager is in charge of main memory, also known as random access memory (RAM). It checks the validity of each request for memory space and, if it is a legal request, the memory manager allocates a portion that is not already in use. In a multi-user environment, the memory manager sets up a table to keep track of who is using which section of memory. Finally, when the time comes to reclaim the memory, the memory manager de-allocates the...

(read more)

This section contains 1,618 words
(approx. 6 pages at 300 words per page)
Buy the Operating Systems Encyclopedia Article
Copyrights
Macmillan Science Library: Computer Sciences
Operating Systems from Macmillan Science Library: Computer Sciences. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.
Follow Us on Facebook