Slower layer to a faster layer, Computer Engineering

Assignment Help:

Given a four level hierarchical storage system consisting of: cache,  primary storage, secondary storage, and tertiary storage. Suppose the following:  programs may be executed on any of the four levels; each level consists of the same amount of real storage and the range of addresses on each level is identical. The speed at which programs are run is grouped from slowest (tertiary storage) to fastest (cache), where each layer is 10 times faster than the previous lower layer. There exists one CPU in this system, which may run one program at a time. Programs may be shuttled from any layer to any layer.

a) Why might the operating system choose to move information from a faster level to a slower level, bypassing an intermediate level, IE. from cache to secondary  storage?

b) Why would items move from a slower layer to a faster layer?

c) Should information be allowed to move from any level to any level or should transfers only occur from adjacent levels? Explain in detail.


Related Discussions:- Slower layer to a faster layer

COA, During instruction execution, there are other parts of the CPU that ca...

During instruction execution, there are other parts of the CPU that can determine when a physical register might be freed. Briefly describe where else we can put freeing logic and

Explain the sum of product form - standard forms, Explain the Sum of Produc...

Explain the Sum of Product Form? In The Boolean Algebra a product is produced by "ANDing" two or more variable inputs. Product of the two variables is expressed as AB and three

Explain protection mechanism, Explain Protection mechanism. Protection...

Explain Protection mechanism. Protection mechanism: The subsequent mechanisms are commonly utilized for protecting files having programs and data. (a) Access controls list

Which address is specially used by transport layer, The addressing speciall...

The addressing specially used by Transport Layer is? The addressing particularly used through transport layer is application port address.

How are standard query operators useful in linq, Standard Query Operators i...

Standard Query Operators in LINQ can be used for working with collections for any of the following and more. 1. Get total count of elements in a collection. 2. Order the resu

What is delegation, What is Delegation? A delegate acts like a strongly...

What is Delegation? A delegate acts like a strongly type function pointer. Delegates can raise the methods that they reference without making explicit calls to those methods. D

What are the major components of a web browser, What are the major componen...

What are the major components of a web browser? A browser contains a set of clients, a controller and a set of interpreters which manages them. All browsers must have an HTML

What is sgml, SGML is very large, influential, and difficult. It has been i...

SGML is very large, influential, and difficult. It has been in important industrial and commercial use for nearly two decades, and there is a important body of expertise and softwa

What is input - output instructions, Q. What is Input - Output Instructions...

Q. What is Input - Output Instructions? An I/O instruction is stored in memory of computer and is fetched as well as executed by processor producing an I/O-related command for

What is a matchcode, What is a matchcode? A match code is an aid to fin...

What is a matchcode? A match code is an aid to finding records keeps in the system whenever an object key is needed in an input field but the user only knows other (non-key) in

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd