Category: Operating Systems

Q: Research review for Memory Management in Android / iOS / any other mobile operating system.
Use the following fonts. Times New Roman font with font size of 12 for paragraphs
Times New Roman font with font size of 14 bold for headings
The line spacing should be single.
Paper should not have more than 15% plagiarism.
Avoid grammatical mistakes.
two files for the answer and Presentation
The deliverables of the project should include A report with the following section
o Abstract: summary of chosen problem. (1 Marks)
o Introduction: a brief introduction about the chosen topic. These should be demonstrated using text and diagrams. (2 Marks)
o Background: a brief of the chosen topic (provide any terms or theories the reader should know about). (2 Marks)
o Discussion: discuss the chosen topic thoroughly. (3 Marks)
o Conclusion: summarize the findings of the discussion. (1 Marks)
o References: The citation should follow the APA style. (1 Marks)
o Presentation: From your paper. (4 Marks)
the paper must be 6-8 pages, including references.

Locate an Email either online or using your email program.
Show the email header showing the information not normally displayed
Copy the header to a word document (with title page)
Answer the following questions
1. What is the name of the source server that sent the email?
2. What is the email address of the sender in the header?
3. Is the senders domain name the same as the sending server?
Must be done in APA format

ROS programming
Create a path planning program using either C++ or python that works with turtlesim
package (https://wiki.ros.org/turtlesim) in ROS. It requires writing both subscriber and
publisher code. You can learn about these concepts by reading
https://cse.sc.edu/~jokane/agitr/ (Chapter 3).
You will control the motion of a robot using the turtlesim package. The simulated (turtle)
robot lives on a 30×30 grid. The coordinates for the lower-left corner are (0, 0), and for
the upper-right corner are (30,30). Initially, the turtle is positioned at (20, 20) heading
west. The simulator is designed to prevent turtle from escaping the square workspace.
You will write a program that should do the following.
 When the program begins, it should prompt the user for an input goal position (xg,
yg).
 Once the goal position is entered, your robot should move to the goal using a
proportional control scheme:
o Determine the desired heading to the goal (i.e., the heading angle from the
robot’s current position to the goal).
o Determine the heading error.
o Set the angular velocity of the robot to be proportional to the heading error.
o Set the linear velocity of the robot to be proportional to the distance to the goal.
These commands should be executed in a loop, until the robot reaches the goal
position (within certain error tolerance). This is a control scheme. Feel free to design
a more sophisticated controller.

Complete the wireshark tutoria
Submit a screen shot (in properly formatted word doc) of several screen of captures of the wireshark tutorial
must be in apa format

Hatch Enterprises makes backpacks for children and adults from the same nylon material.
We receive 5,400 square feet of nylon each week from our supplier. It takes 3 square feet
of nylon to make the adult backpack and 2 square feet to make the child size. We believe
we can sell at most 1,000 adult backpacks per week and at least 750 child size. It takes
45 minutes to sew the adult size and 30 minutes to sew the child size. We have 30 staff
who each work 40 hours per week. We sell the adult backpack for $35 and the child
backpack for $25.
a. Define the decision variables
b. Build the objective function (in standard format)
c. Formulate the constraints
2. Hatch Beverage Company produces high quality apple, strawberry and cranberry juices.
We blend our juices from spring fresh water, sugar and natural flavors. The sales price
per quart of juice is listed below along with the purchase price per unit of ingredient.
Juice Sales Price Ingredient Cost
Apple $7.00 Water $2.00
Strawberry $6.00 Sugar $3.50
Cranberry $5.00 Flavors $4.00
We can purchase up to 10,000 gallons of water and 4,000 pounds of sugar each week.
We need to make at least 3,000 quarts of apple juice, and 2,500 quarts of cranberry juice
each week.
The strawberry juice should be at most 80% water and the cranberry juice should be at
least 10% natural flavors.
How much of each juice should we blend to maximize profits?
a. How many decision variables do we need? Define them.
b. Set up the objective function
c. Define the constraints mathematically
3. Consider the following LP formulation where X1 = tables and X2 = chairs.
Max Z = 3X1 + 3X2
St
4X1 + 5X2 ≤ 40 Wood
2X1 + 6X2 ≤ 24 Metal
3X1 – 3X2 ≥ 6 Plastic
X1 ≥ 4 Demand
a) Solve the problem graphically – shade the feasible region and label the constraints
b) What is the optimal solution?

For this week’s assignment, you will conduct a presentation with simple original illustrations to communicate and motivate choices to senior management. Be sure your presentation is designed to help management determine the activities that are necessary and needed to maintain network connectivity, functionality, and security.
Your presentation should include the following:
Activities to maintain network connectivity, functionality, and security for wired wireless, and wide area networks.
Methods and approaches to administration and management of the networks across multiple offices, remote users, mobile users, and the use of IoT devices.
Network perimeter defenses, asset controls, monitoring, and the detection of intrusions.
Length: Create 7-10 content slides using a PPT presentation with simple original illustrations to communicate and motivate choices to senior management. Include 100 to 150 words to describe the verbal content and citations below the projected slides. Add a title slide at the beginning and provide references using 12-point slides at the end.
References: Include a minimum of 3 scholarly resources beyond those in the course.
The completed assignment should address all of the assignment requirements, exhibit evidence of concept knowledge, and demonstrate thoughtful consideration of the content presented in the course

Through mind tap I have Excel training and are needing help with a few sections. There is a training and quiz for each module. It walks you through step by step what to do and will be easy for someone who already knows excel.

The following is the ER diagram for a typical order management process database model. From this, create a physical EER Database Design that includes tables, table keys, fields, and relationships/cardinalities between tables.
Order Processing Rules
An order cannot be created if a customer does not make a purchase
An order cannot be created if a product is not provided by the customer
A receipt cannot be generated if there is no order produced
A customer does not have to make a purchase of product(s)
A product does not have to be purchased by a customer
Instructions
Referencing the above ER Diagram and its respective requirements, create an EER diagram using Lucidchart:
Define each Table (Entity)
Specify Entity Primary Keys
Add the table fields (Attributes) for each table
Add appropriate cardinality connector lines, and denote their maximum and minimum cardinalities (Use the Order Processing Rules to define)
Define the Table, Foreign Keys
Define the proper data type for each table attribute
Organize the EER diagram for best readability
Submission
For this Lab, submit a single pdf file exported from Lucidchart for the EER Diagram.

it is a program of Microsoft window which is used to arrange file and folder of disk so that the files can be accessed quickly if removes fragment between two or more files .
=>Req steps
1.click on start –all program-accessories-system tool-disk defragmenter .
2.select name of desired drive (c)
3. click on defragmentbutton
=> 2ndmethod
1.press window key +R
2.type DERGUI
3.press enter key
4.select name of drive
5.click on defragment button

=>Req steps to reset internet Explorel .
1.click on internet explorer icon
2.click on start button-all program –internet explorer option
3.click on tool option (ALT+x)
4.click on internet option
5. click on advance button
6.put check mark of desire option to be reset
7.click on reset button
8.put check mark on delete personal setting option
9.click on reset button
10.click on close button
11.click on yes
(operating system )=>OS