Answer:
operating systems is a group of computer programs that is responsible for the management and coordination of activities and the sharing of the resources of that computer.
objective
1 to make the computer system convenient and easy to use for the user.
2 to use the computer hardware is a efficient way by handling the details of the operations of the hardware
PLZ HELP ASAP
(03.11 MC)
Your brother used your computer to complete his homework last night, and now your login password no longer works. What question frames your problem into a question to help reach a solution?
What is wrong with my brother?
Did this computer get a virus?
Why is this computer broken?
Did my brother change the password?
Question 2(Multiple Choice Worth 5 points)
(03.11 LC)
This option in the Help tab allows you to leave a suggestion about how to improve Office Online.
Accessibility
Contact Support
Feedback
What's New
Question 3(Multiple Choice Worth 5 points)
(03.11 MC)
You invited two of your friends over for movie night. One of your friends brought her sister, so now there are more people than you planned for. You want to pass out small bags of chips, but you only have three and you need four for everyone to have one. What is the best solution for the problem?
Ask your mom to go to the store to buy more chips.
Don't offer your friends any snacks.
Pour the small bags into a bowl and share the chips.
Tell your friend's sister she can't have one.
Question 4(Multiple Choice Worth 5 points)
(03.11 LC)
What is the first step in finding a solution to a problem?
Choose a solution.
Think of options to solve the problem.
Try the solution.
Turn the problem into a question.
Question 5(Multiple Choice Worth 5 points)
(03.11 MC)
Rafael likes to stay up to date with the latest technology and learn about updated features on his favorite software, Word Online. How can Rafael stay up to date on changes to the features of Word Online?
Ask a question in the box under the Help tab.
Contact customer support every week.
Go to the What's New option under the Help tab.
Provide feedback on features he wants to see.
Answer:
Did this computer get a virus.
Explanation:
The brother can't change the password because it required him to get the old password before changing it.
1.4 Assume the source port number used by the above browser is 5100. Now a second browser is opened on the client also wants to request the same webpage. Does the second browser use the same source port number of 5100? Why? What is the destination port number?
Answer:
100000001
Explanation:
A website that sells computer hardware to large organizations --> .com. A website operated by the state of California --> .gov. The website of the US Coast Guard --> .mil. The website of a group of individuals who work toward protecting gray wolves --> .org
What is the government website?The government website is the official US government website and is used for a domain name that is based on the word government. It is administrated by the cyber security and infrastructure security agency.
It is sponsored top level domain and only the US government is federal govt uses such websites.a website that sells computer hardware to large organizations a website operated by the state of California.
The website of the US Coast Guard the website of a group of individuals who work toward protecting gray wolves. a website that sells computer hardware to large organizations a website operated by the state of California.
Therefore, A website that sells computer hardware to large organizations --> .com. A website operated by the state of California --> .gov. The website of the US Coast Guard --> .mil. The website of a group of individuals who work toward protecting gray wolves --> .org
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Which statement best describes the two main families of fonts
Answer:
There are five basic classifications of typefaces: serif, sans serif, script, monospaced, and display.
Explanation:
Write a program that assigns a value the value of 50000 to an integer variable x, assigns the value of x*x to an integer variable y, and then prints out the value of y.
Answer:
Explanation:
The following code is written in Java and does exactly what the question asks. The variables are long variables instead of integers because integer variables can only be a maximum of 2147483647 and the product of these two variables is much higher than that.
public static void main(String args[]) {
long x = 50000;
long y = x * x;
System.out.println(y);
}
window is a very popular operating system becouse of its _ environment .
Drag each label to the correct location on the image
Identify the parts of the table,
primary key
field
record
table
Answer:
Explanation:
because i took the test
What is the practice of distributing responsibility among multiple people so that no one person has full control of
everything?
Separation of duties
Responsibility sharing
Separation of responsibility
None
Answer:
If the responsibilities are distributed ,the disputes amongst people wont take place because their wont be any partiality, everyone would be equal. Moreover it is difficult for one person to control everything at once and multiple people would help the work to be organized as everyone will have their own part of work which is supposed to be fulfilled.
Put these events in the order in which they occurred,
starting with the earliest.
b
Germany prepares for an imminent attack on the island of
Sardinia.
Spanish officials pass off the information in the briefcase to
German agents.
Local fisherman recover the body of Major Martin off the coast
of Spain
Major Martin's name appears on a casualty list in a British
newspaper
Answer:
Local fisherman recover the body of Major Martin off the coast of Spain .Spanish officials pass off the information in the briefcase to German agents.Major Martin's name appears on a casualty list in a British newspaper.Germany prepares for an imminent attack on the island of Sardinia.Explanation:
This above is the order in which Operation Mincemeat was executed in WW2 to deceive the Germans into believing that the Allies were going to invade the Balkans directly instead of Sicily which was their actual target.
The plan involved a fictitious Major Martin who had secret documents about the Allied invasion of the Balkans. After the body was released from a British submarine, it washed up in Spain where it was found by local fishermen.
Spanish officials then passed the information in the briefcase Major Martin had to German intelligence. To further reinforce the ruse, the British published Major Martin's name in a casualty list.
The Germans were thoroughly convinced and switched forces from Sicily for the defence of the Balkans and the island of Sicily.
Assume you have the all_info list that is given in the Do It Now problem 1. This list includes the grades of 4 courses for 4 students. Write a code that asks a name from the user. Then it will search for that name in the list all info. Of the name exists in the list, the program will display the programming grade of that student. For example, if the user enters 'Sarah ' the program will display 90. If the user enters a name that is not in the list, such as 'Jack', the program will display an error message such as 'Sorry, but this student is not in the list'.
Answer:
titles =['name', 'physics', 'chemistry', 'math', 'programming']
student_1 =['Kathy', 90, 80, 75, 100]
student_2 =['John', 65, 84, 79, 90]
student_3 =['Joe', 45, 89, 100, 10]
student_4 =['Sarah', 68, 89, 93, 90]
all_info =[titles, student_1, student_2, student_3, student_4]
student = input("Enter student's name: ")
student_list = [name[0] for name in all_info]
if student in student_list:
print(all_info[student_list.index(student)][4])
if student not in student_list:
print("Student name does not exist.")
Explanation:
The python program prompts for user input "student" and the input is used to search and return the result of the student in the programming exam. If the name is not in the student_list, the program print an error message.
Write a C++ program to define an abstract class in polymorphism?
Answer:
Following are the program to this question:
#include <iostream>//header file
using namespace std;//namespace
class Val //defining abstract class
{
public://use access specifier
virtual int squ()=0;//declaring a method squ
void setval(int x) //defining a method setval
{
a=x;//holding value in a variable
}
protected://use access specifier
int a;//defining integer variable
};
class square: public Val //defining a class square that inherit abstract class
{
public://use access specifier
int squ() //defining squ method
{
return (a*a); //return square value
}
};
int main() //main method
{
square s;//creating class object
s.setval(5);//calling setval method
cout << "The square value is: " << s.squ() << endl;//print value by calling squ method
}
Output:
The square value is: 25
Explanation:
In the above code a two-class "Val and square" is declared, in which val is abstract class, in a method squ is declared, and setval is used to set the value.
In the next step, the square class inherits Val and defines the squ method, and uses the return keyword to return its calculated value.
In the main method square class object is created and set the setval value and call the squ method and print its value.
Which statement is true about the Internet and the World Wide Web?
A•The World Wide Web is a way to access the internet
B•The internet is the World Wide Web
C•The internet is a way to access the World Wide Web
D•The World Wide Web is the only way to access the internet
Answer:
C
Explanation:
The world wide web are the pages you see when you're at a device and you're online. But the internet is the network of connected computers that the web works on, as well as what emails and files travel across.
In this question, only the "Option c" is correct which can be defined as follows:
The World Wide Web (WWW) is one way of accessing the information on the web. Even if it occupies a significant portion of the web and is the most popular, the two notions should not be viewed as synonyms because they are not the same.The WWW is indeed the pages while you're online on a computer device.This network of interconnected machines upon, that the web operates, as well as a medium through the emails and data, are being sent and received.The wrong choices can be defined as follows:
In option a and Option d, both are wrong because it's the universe of network-accessible data, a manifestation of human understanding.In option b, it is wrong because it is a global network of networks, the Internet is also known as WWW.Learn more:
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The key operation in encryption and decryption process is the exponentstion. Given an integer x it is easy to write a linear algo O((n)) to find x^n for any integer n. Describe the maths of a fast exponentation algo that can compute x^n in o(log2n) time. Justify
Answer:
Following are the solution to this question:
Explanation:
[tex]x^n[/tex] could be approximated by getting a small n loop as well as multiplying x for each incarnation in a linear time. It's very simple. Its key concept is to do it in log2n time.
[tex]x^n = x^{\frac{n}{2}}\ is \ obvious \ \ x^{\frac{n}{2}}[/tex]
Therefore,[tex]x^{n}, x^{\frac{n}{2}}[/tex] could be determined and divided by itself instead of [tex]x^n[/tex] calculation. It must be done frequently to ensure which half the research is done out with each stage.
Runtime:
Its repetition relationship of the above function is:
[tex]T(n) = T(\frac{n}{2}) + 1[/tex]
This can be resolved by master theorem, so it's obvious. The running time of this repeating ration, by master theorem, is [tex]O ( \log_2n )[/tex].
Pseudocode:
int exponent( int x_1, int y_1 )//defining a method exponent
{
if(y_1==1) //use if to check n value equal to 1
{return x_1;} //return x value
Int t= exponent(x_1,y_1/2);//call method
return t*t;//calculate square
}
Cryptocurrencies are digital tokens that are created independently of government money, and can act as a medium of exchange and store of value. Which other instrument could most reasonably fulfill the same function
Answer:
Gold
Explanation:
From the question, we are informed about Cryptocurrencies which are digital tokens that are created independently of government money, and can act as a medium of exchange and store of value. One of other instrument that could most reasonably fulfill the same function is Gold. A medium of exchange can be regarded as a intermediary instrument which is a function of money that facilitate trade or purchase and selling between seller and buyers, and it must be accepted as payment for transactions. Such intermediary instrument as a medium of exchange are Gold, salt as well as stone. Gold was chosen by most of the commodity-money advocates as a medium of exchange as a result of the intrinsic property it posses, and it's fixed stock value
What are two items that are visible from the Month view?
events and item details
meeting locations and tasks
tasks and item details
appointments and events
Answer:You can do this by clicking and holding down your mouse button an a day in the Date Navigator (small calendar on the side). Then drag your mouse over the days which you want to select. When your selection spans more than a week, you're selected weeks will be shown in the Month view.
Explanation:
You can do this by clicking and holding down your mouse button an a day in the Date Navigator (small calendar on the side). Then drag your mouse over the days which you want to select. When your selection spans more than a week, you're selected weeks will be shown in the Month view.
Block elements start a new line when rendering? (true or false)
Answer:true
Explanation:
A Web server has five major components that must all function in order for it to operate as intended. Assuming that each component of the system has the same reliability and one of the components will have a backup with a reliability equal to that of any one of the other components, what is the minimum reliability each one must have in order for the overall system to have a reliability of 0.696
Answer:
The answer is below
Explanation:
Let x represent the reliability of each of the five major components. Since all the components must function before the system operates, hence they are in series with each other.
One component has a backup of the same reliability, the reliability of the back up system = 1 - (1 - x)² = 2x - x²
Therefore the reliability of the system is:
x * x * x * x * (2x - x²) = 0.696
2x⁵ - x⁶ = 0.696
x⁶ - 2x⁵ + 0.696 = 0
Solving the polynomial equation online using byjus.com gives:
x = 0.915038
x = 1.97695
x = -0.632585 - 0.429075 i
x = -0.632585 + 0.429075 i
x = 0.186590 - 0.789741 i
x = 0.186590 + 0.789741 i
Since the reliability is not a complex number and it is less than or equal to 1, hence:
x = 0.915038, x ≅ 0.915
Which ad extensions can serve automatically?
Answer:
Sitelink, structured snippets, and callout.
Explanation:
Those 3 are the 3 main ad extensions that can serve automatically. I learned this on Monday.
Why is making a model, or prototype, important in the design process?
Explanation:
to size up and define your works organize and having a creative thoughts and imaginations in it to properly execute the measurement of the clothes.
Given the following knowledge representation, what is a simple English sentence that it represents? PTRAN agent=John object=John from=London to=? instrument= PROPEL agent=plane object=plane from=? to=London and PTRAN agent=John object=John from=? to=plane
Answer:
John is from London and is on a plane to London
Explanation:
The is known as a parallel text alignment or parallel translator.
A customer connects to your business network. The customer uses a packet sniffer to intercept network traffic in an attempt to find confidential information. This is an example of which type of attack
Answer:
Self Attack
Explanation:
I pick self attack because the person is trying to harm you.
explain the types of computer on the basis of work
Answer:
There are three types of the computer on the basis of work. They are analog, digital, and hybrid computer. The computer that work with natural phenomena and physical values like earthquake measurement, speed of the wind, weight light etc is known as Analog computers.
Explanation:
1.1 Define the following terms: data, database, DBMS, database system, database catalog, program-data independence, user view, DBA, end user, canned transaction, deductive database system, persistent object, meta-data, and transaction-processing application
Explanation:
data: refers to a collection of unprocessed factsdatabase: database is a term used to describe a collection of related dataDBMS: is an acronym that means Database Management Systems; as the name implies, they are computer application systems designed to create and manage/maintain the operations of a database.database system: is a system designed specifically for the administration of a database.database catalog: the database catalog is a list containing information related to the type of each file in the database, and other information related to the data. program-data independence: this is term used to refer to the act of separating the program and the data. In other words, the programs and the data definitions of a database are independently separated. user view: it refers to how a database appears to the user.DBA: DBA (Database Administrator) refers to someone who is in charge of authorizing access to a database, and also runs the operations of the database, like updating software, etc end-user: the end user of a database refers to those who benefit primarily from the database, like searching for queries, creating reports, etc. canned transaction: employs the use of standard queries and updates on the database.deductive database systems: This type of database systems provides capability for defining deduction rules for new information from the stored database. persistent object: any stored object in a DBMS program that can survive (or be retrieved) after the program is terminated is called a persistent object.meta-data: includes information about the format or structure of files in the database, etc. transaction-processing application: is an application that allows for the retrieval, removal, or modification of database files. It basically aides the smooth running of the database operations.. The add() method of the ArrayList class can: A. Shift indexes in the list B. Creates a new Value at the end of the list C. Creates a new Value at any specified index D. Increases the size of the list E. All of the Above
Answer:
All of the Above
Explanation:
The add() method of the ArrayList class is a Java function that jas the capability of adding elements to an array list. In order to add elements to the great list, this java function does the following work as well
1. It shift indexes in the list
2. It establishes a new Value at the end of the list
3. It creates a new Value at any specified index
4. It expands the size of the list.
Hence, in this case, the correct answer is option E. "All of the above."
Which IDE component provides keyword highlighting and text auto-completion?
IDE component that provides keyword highlighting and text auto-completion is Source code editor.
What is an integrated development environment (IDE)?An integrated development environment (IDE) exists as software for construction applications that integrates common developer tools into a single graphical user interface (GUI). An IDE typically consists of:
Source code editor: A text editor that can help in writing software code with components such as syntax highlighting with visual cues, furnishing language-specific auto-completion, and inspecting for bugs as code exists being noted.
Therefore, the correct answer is the Source code editor.
To learn more about Source code editor
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Variable X is a *
Public Class Form)
Sub Example 10 Handles MyBase.load
Dim X As Integer
X = 10
MsgBox("The value of X is "& X)
End Sub
Answer:
Variable X is a local variable.
Explanation:
X exists only inside the sub.
PLS HELP: Identify the correct CSS syntax to link an external style sheet??
Answer:
See Explanation
Explanation:
This question required options. Since there are none, I'll answer on a general terms.
To link to an external style sheet in CSS, use the following syntax:
<link rel = "stylesheet" type = "text/css" href = "link to css file">
As seen above, the link tag is used to achieve this tax.
The rel attributes shows the relationship between the css file and the html file.
In this case, the css file is a stylesheet; hence, rel = "stylesheet"
Next, is the type attribute which shows the content of the file to be linked. In other words, the file type
Lastly, the link to the css file.
Take for instance, the file name is example.css and it is in the same directory as the current document, the following will be used.
href = "example.css"
However, if example.css is in a different directory, the link to the file directory will be stated.
Conclusively, one syntax to use for a file named example.css is:
<link rel = "stylesheet" type = "text/css" href = "exampl.css">
You need expensive cameras, lenses, and equipment to get good wildlife photographs.
A. True
B. False
Answer:
False
Explanation:
. A Worker in Microworkers can also be an Employe
Answer:
A Worker in Microworkers can also be an Employer: After reaching $25 in earnings. After placing an initial deposit of $10, and launching a valid campaign. If success rate is maintained at 75% before launching a campaign. After creating a separate Employer account.
Explanation:
Write a program in C/C++ to draw the following points: (0.0,0.0), (20.0,0.0), (20.0,20.0), (0.0,20.0) and (10.0,25.0). For this purpose, you may use the GL_POINTS primitive.Write a program in C/C++ to draw the following points: (0.0,0.0), (20.0,0.0), (20.0,20.0), (0.0,20.0) and (10.0,25.0). For this purpose, you may use the GL_POINTS primitive.
Your manager has asked you to write a program that displays the percentage of males and female in your class. The program should prompt the user to enter the number of males and females and display the results.
Explanation:
The program using python programming language would be:
First, we write the Input prompt.
Input prompt for the user
number_of_males_in_class = int (input ('Enter the number of males: '))
number_of_females_in_class = int(input('Enter the number of females: '))
Next, we write the Process algorithm.
Process algorithm
total_number_of_students_in_class = number_of_females_in_class + number_of_males
_in_class
percentage_of_males_in_class = number_of_males_in_class / total_number_of_students
_in_class
percentage_of_females_in_class = number_of_females / total_number_of_students
Finally, the Output process
Output process
print('Total number of males in class =', format(percentage_of_males_in_class, '.0%'))
print('Total number of females =', format(percentage_of_females_in_class, '.0%'))