1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
TiliK225 [7]
3 years ago
13

5.14 Describe how the compare and swap() instruction can be used to provide mutual exclusion that satisfies the bounded-waiting

requirement. (15 pts)
Computers and Technology
1 answer:
Naddik [55]3 years ago
8 0

Answer:

Explained below

Explanation:

Compare and Swap(C&S) is simply an atomic operation whereby the compare and swap operations are automatically executed.

Now compare and Swap basically needs 3 arguments namely:

- 2 old values which we will label X and Y

- 1 new value which is written in X that we will call Z

Thus, we now have; C & S = {X, Y, Z}

To explain this well, let X be a variable where X has a value of 7.

Now, if a programmer gives a program me that X be multiplied by 2,then what C&S operation will do is;

I) Y = X where Y is a new variable.

II) Result = C&S(X, Y, X*7)

Variable X is global and this means that mere than one process and more than 1 thread can see the variable X.

Now, if a process named P1 wants multiply the variable X by 7 using C&S operation, it will first make a local copy of variable X (which in this case is now the new variable Y). After that it will atomically compare X & Y and if they are equal, it will replace X with 10X.

However, if they are not equal, P1 will re-read value of X into Y and carry of C&S instruction again.

You might be interested in
ISO 400 is twice as sensitive and ISO 100 true or false
beks73 [17]

Answer:

Quite simply, when you double your ISO speed, you are doubling the brightness of the photo. So, a photo at ISO 400 will be twice brighter than ISO 200, which will be twice brighter than ISO 100.

Explanation:

ISO most often starts at the value of ISO 100. This is the lowest, darkest setting, also called the base ISO. The next full stop, ISO 200, is twice as bright, and ISO 400 is twice as bright than that. Thus, there are two stops between ISO 100 and 400, four stops between 100 and 1600, and so on.

4 0
3 years ago
(PLATO) How can hackers obtain a person’s data? Malicious hackers can obtain a person’s data through the method of simple ___ en
EastWind [94]

The missing word here is social.

Social engineering involves using simple human methods to steal data, such as looking through peoples’ drawers for pieces of paper on which they might have written down passwords, or perhaps sneaking a look at the keys you press while walking past your desk as you are typing your password. Such behaviors designed to steal your personal information are methods of social engineering.

Let me know if you have any questions.

5 0
3 years ago
In this exercise, your function will receive 2 parameters, the name of a text file, and a list of strings. The function will wri
diamong [38]

Answer:

# the function is defined

# it takes 2 arguments: filename and list of string

def solution(filename, listOfString):

   # the file is opened in write mode

   # so that we can write to it

   with open(filename, 'w') as file_object:

       # we loop through the entire list of string

       # this looping help us know what to write to the file

       for each_string in listOfString:

           # if the length of the string is less than 4

           # we write 'x' with a new line

           if len(each_string) < 4:

               file_object.write("x\n")

           # else if the length of the string is greater than equals 4

           # we write the fourth character

           # and also add new line

           else:

               file_object.write(each_string[3])

               file_object.write("\n")

Explanation:

The function is written in Python. It takes two argument; filename and list of string.

It opens the file in write mode and then loop through the list of string. During the loop, we know what to write to the file.

In the length of a string is less than 4; we write 'x' else we write the fourth character in the string. The fourth character has an index of 3 because string uses zero index counting like a string. Starting from zero; 0, 1, 2, 3, 4... the fourth character has an index of 3.

5 0
3 years ago
A _____ is sent to companies that are hiring to get an interview. résumé brochure business report newsletter plz hurry need it n
frozen [14]

Answer:

A application

Explanation:

3 0
2 years ago
Read 2 more answers
You have probably heard of wearable fitness devices, such as FitBit. What new products do you think might exist in this field in
tino4ka555 [31]

The new products in this fitness field in a decade are:

  • TRX Home2 System.
  • Rogue Rubber Coated Kettlebells.
  • Stamina Adjustable Kettle Versa-Bell, etc.

<h3>What is the use of artificial intelligence in fitness?</h3>

AI is known to be in the field of wellness and also fitness as it has made product such as:

  • GOFA Fitness that uses GPS.
  • 3D motion tracking technology.
  • Machine learning to give users with live feedback when in a workouts, etc.

Therefore, The new products in this fitness field in a decade are:

  • TRX Home2 System.
  • Rogue Rubber Coated Kettlebells.
  • Stamina Adjustable Kettle Versa-Bell, etc.

Learn more about fitness from

brainly.com/question/1365564

#SPJ1

5 0
2 years ago
Other questions:
  • The analog signals that carry analog or digital data comprise composites built from combinations of simple sine waves.
    12·1 answer
  • Write a program that will askthe user to enter the amount of a purchase. The program should thencompute the state and county sal
    5·1 answer
  • THE DOMAIN IN AN EMAIL MESSAGE TELLS YOU THE
    11·1 answer
  • What command do you type in the search box to access the command line intrface in windows?
    8·1 answer
  • Rule- based systems are subset of expert systems true or false?
    7·1 answer
  • Please help! 40 points + Brainliest!
    8·1 answer
  • Refer to the image on the right. Then, using the drop-down menu, identify the correct printer type. A: inexpensive home printer
    10·1 answer
  • You are the IT administrator for a small corporate network. The employee in Office 2 is setting up a virtualization environment
    10·1 answer
  • A ____________ protocol is software that provides or facilitates a connection in which no information is retained by either send
    13·1 answer
  • ___________ is some danger that can exploit a vulnerability.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!