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dusya [7]
3 years ago
14

A page-replacement algorithm should minimize the number of page faults. We can achieve this minimization by distributing heavily

used pages evenly over all of memory, rather than having them compete for a small number of page frames. We can associate with each page frame a counter of the number of pages associated with that frame. Then, to replace a page, we can search for the page frame with the smallest counter.
a. Define a page-replacement algorithm using this basic idea. Specifically address these problems:

i. What is the initial value of the counters?
ii. When are counters increased?
iii. When are counters decreased?
iv. How is the page to be replaced selected?

b. How many page faults occur for your algorithm for the following reference string with four page frames? 1, 2,3, 4, 5, 3, 4, 1, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 4, 5, 4, 2.

c. What is the minimum number of page faults for an optimal page replacement strategy for the reference string in part b with four page frames?
Computers and Technology
1 answer:
tekilochka [14]3 years ago
4 0

Answer:If you think that a blank sheet of paper or a blinking cursor on the computer screen is a scary sight, you are not alone. Many writers, students, and employees find that beginning to write can be intimidating. When faced with a blank page, however, experienced writers remind themselves that writing, like other everyday activities, is a process. Every process, from writing to cooking to bike riding to learning to use a new cell phone will get significantly easier with practice.

Just as you need a recipe, ingredients, and proper tools to cook a delicious meal, you also need a plan, resources, and adequate time to create a good written composition. In other words, writing is a process that requires steps and strategies to accomplish your goals.

These are the five steps in the writing process:

Prewriting

Outlining the structure of ideas

Writing a rough draft

Revising

Editing

Effective writing can be simply described as good ideas that are expressed well and arranged in the proper order. This chapter will give you the chance to work on all these important aspects of writing. Although many more prewriting strategies exist, this chapter covers six: using experience and observations, freewriting, asking questions, brainstorming, mapping, and searching the Internet. Using the strategies in this chapter can help you overcome the fear of the blank page and confidently begin the writing process

Explanation:

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Thomas owns a small Web services company and currently owns and maintains all his own computing hardware. He plans to develop an
Stels [109]

Answer: Hello the options related to your question is missing attached below are the options

answer : unlimited computing capacity for a low monthly fee ( A )

Explanation:

Since Thomas plans to develop a new service that will require his computing capacity to either double or triple, The best way of transitioning to the public cloud that might help Thomas meet up the requirement is Using unlimited computing capacity for a low monthly fee

7 0
3 years ago
Consider the following code:
Phoenix [80]

Answer:

customers += newCustomer;

Explanation:

The operator += expands into + and assignment. The assignment is not overloaded so the required code is

customers += newCustomer;

This expands into

customers = customers + newCustomer;

The overloaded + operator is called for the right expression. This returns a `CustomerList`, which is then assigned through the = operator to `customers`.

3 0
3 years ago
An algorithm to display multiplication table a number up to 12​
kkurt [141]

Explanation:

Explanation:They are

Explanation:They are 1) start the process

Explanation:They are 1) start the process 2) Input N, the number for which multiplication table is to be printed

Explanation:They are 1) start the process 2) Input N, the number for which multiplication table is to be printed 3) For T = 1 to 10

Explanation:They are 1) start the process 2) Input N, the number for which multiplication table is to be printed 3) For T = 1 to 104) print M = N*T

Explanation:They are 1) start the process 2) Input N, the number for which multiplication table is to be printed 3) For T = 1 to 104) print M = N*T5) End for

Explanation:They are 1) start the process 2) Input N, the number for which multiplication table is to be printed 3) For T = 1 to 104) print M = N*T5) End for6) Stop the process

4 0
3 years ago
E whether True or False.
Natasha_Volkova [10]

Answer:

Learn vocabulary, terms, and more with flashcards, games, and other study ... covers a large geographical area and is made up of many smaller networks. ... you share the cable infrastructure with your neighbors ... do you need if you want to connect two network segments together such as a ... the twists reduce crosstalk.Explanation:

5 0
3 years ago
Help me in this work sheet
andreyandreev [35.5K]

The correct matching of the given computer components/commands are:

  • Input- Data given to the computer
  • Output- Result provided by the CPU
  • Processing- CPU
  • Data storage- Memory

<h3>What is Input? </h3>

This refers to the process of giving raw data to a computer system that needs processing to be done to it.

Hence, we can see that based on the computer components and commands given in the image have all been correctly matched.

Read more about computer components here:

brainly.com/question/23339335

#SPJ1

4 0
2 years ago
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