Why operating system is pivotal in teaching and learning

Answers

Answer 1

Answer:

Without it information flow is impossible

Explanation:

The word 'pivotal' also means crucial or vital, and so we need to consider what an operating system actually does.

Remember, merely having all the hardware of a computer would not allow you to run (install and use) programs. It is by means of an operating system that teaching programs can be installed, and it is also by means of an operating system learning can take place.

For example, a student can decode (learn) instructions/lessons from his teacher via a software program; and the software program needs an operating system to open (run) the program.


Related Questions

Write a program that reads the input.txt file character by character and writes the content of the input file to output.txt with capitalize each word (it means upper case the first letter of a word and lowercase remaining letters of the word)

Answers

Answer:

def case_convertfile( file_name):

    with open(" new_file","x") as file:

         file.close( )

    with open("file_name", "r") as txt_file:

     while True:

            word = txt_file.readline( )

            word_split= word.split(" ")

            for word in word_split:

                  upper_case = word.uppercase( )

                  file= open("new_file","w+")

                  file= open("new_file","a+")

                  file.write(upper_case)

     txt_file.close( )

     file.close( )

Explanation:

This python function would open an existing file with read privilege and a new file with write and append privileges read and capitalize the content of the old file and store it in the new file.

3. How many bytes of storage space would be required to store a 400-page novel in which each page contains 3500 characters if ASCII were used? How many bytes would be required if Unicode were used? Represent the answer in MB

Answers

Answer:

A total of 79.3mb will be needed

what level of security access should a computer user have to do their job?

Answers

Answer:

A computer user should only have as much access as required to do their job.

Explanation:

A computer user should not be able to access resources outside of their job requirement, as this poses a potential attack vector for an insider threat.  By limiting the scope of resources to just what is needed for the user's specific job, the threat to the system or company can be mitigated with additional access control features for the computer user.  Never allow permission higher than what are needed to accomplish the task.

Cheers.

the property of doing work automatically by the computer​

Answers

Answer:

Automation

Explanation:

Suppose you and four of your friends are wirelessly connected with the home wireless router. [03] At this moment router is not transmitting data to the outgoing link and all of you want to browse internet and send packets of same size to the router. Consider the bandwidth of the outgoing link is20Mbps , packet size is 2500 bytes and the processing delay of each packet is
2μs . If your packet is queued at position eleven, calculate the delay after which your packet will be transmitted

Answers

format please? i cant understand

What is resource management in Wireless Communication? Explain its advantages

Answers

Answer:

This is a management system in wireless communication that oversees radio resources and crosstalks between two radio transmitters which make use of the same channel.

Explanation:

Radio Resource Management is a management system in wireless communication that oversees radio resources and crosstalks between two radio transmitters which make use of the same channel. Its aim is to effectively manage the radio network infrastructure. Its advantages include;

1. It allows for multi-users communication instead of point-to-point channel capacity.

2. it increases the system spectral efficiency by a high order of magnitude. The introduction of advanced coding and source coding makes this possible.

3. It helps systems that are affected by co-channel interference. An example of such a system is the wireless network used in computers which are characterized by different access points that make use of the same channel frequencies.

Algorithm
Read marks and print letter grade according to that.

Answers

Answer:

OKAYYYY

Explanation:

BIJJJJJJJSGJSKWOWJWNWHWHEHIWJAJWJHWHS SJSJBEJEJEJEJE SJEJBEBE

Write steps to Delete data from ‘Datagridview’

Answers

Explanation:

private void btnDelete_Click(object sender, EventArgs e)

{

if (this.dataGridView1.SelectedRows.Count > 0)

{

dataGridView1.Rows.RemoveAt(this.dataGridView1.SelectedRows[0].Index);

}

}

If an organization’s DNS server can resolve a DNS request from its own cache, the DNS server is said to be ____.

Answers

Answer:

Answered below

Explanation:

The DNS server is said to be a caching-only DNS server.

A caching-only Domain Name System server, works by recieving queries from the client, proceeds to perform queries against other named servers, then caches the results and returns the results to the client.

Subsequent queries are resolved and returned for the specified host straight from the the cache, by the server, instead of submitting to the external server.

The advantage of this process is that it reduces traffic from outgoing DNS and speeds up the name resolution. Also, there is a reduction in the amount of query traffic.

You bought a monochrome laser printer two years ago. The printer has gradually stopped feeding paper. Which printer component should you check first

Answers

Answer:

Pick up roller

Explanation:

you should first check the pickup roller component. This component is the part of the printer that picks paper up from the paper tray. The pickup roller links the printer and the paper. When the printer printer is running, the roller would take paper from the paper tray for the printer to print on. One of the issues it can have is Paper jam where the roller would stop turning so that it will no longer be picking papers up from the tray.

Develop a CPP program to test is an array conforms heap ordered binary tree. This program read data from cin (console) and gives an error if the last item entered violates the heap condition. Use will enter at most 7 numbers. Example runs and comments (after // ) are below. Your program does not print any comments. An output similar to Exp-3 and Exp-4 is expected.
Exp-1:
Enter a number: 65
Enter a number: 56 // this is first item (root,[1]) in the heap three. it does not violate any other item. So, no // this is third [3] number, should be less than or equal to its root ([1])
Enter a number: 45 // this is fourth number, should be less than or equal to its root ([2])
Enter a number: 61 // this is fifth number, should be less than or equal to its root ([2]). It is not, 61 > 55. The 61 violated the heap.
Exp-2:
Enter a number: 100
Enter a number: 95 1/ 95 < 100, OK
Enter a number: 76 // 76 < 100, OK
Enter a number: 58 // 58 < 95, OK
Enter a number: 66 1/ 66 < 95, OK
Enter a number: 58 // 58 < 76, OK
Enter a number: 66 // 66 < 76, OK
Exp-3:
Enter a number: -15
Enter a number: -5
-5 violated the heap.
Exp-4:
Enter a number: 45
Enter a number: 0
Enter a number: 55
55 violated the heap.

Answers

Answer:

Following are the code to this question:

#include<iostream>//import header file

using namespace std;

int main()//defining main method

{

int ar[7];//defining 1_D array that stores value      

int i,x=0,l1=1,j; //defining integer variable

for(i=0;i<7;i++)//defining for loop for input value from user ends  

{

cout<<"Enter a Number: ";//print message

cin>>ar[i];//input value in array

if(l1<=2 && i>0)//using if block that checks the array values  

{

x++;//increment the value of x by 1  

}

if(l1>2 && i>0)//using if block that checks the array values  

{

l1=l1-2;//using l1 variable that decrases the l1 value by 2  

}

j=i-x;//using j variable that holds the index of the root of the subtree

if(i>0 && ar[j]>ar[i])// use if block that checks heap condition  

{

l1++; //increment the value of l1 variable

}

if(i>0 && ar[j]<ar[i])// using the if block that violate the heap rule  

{

cout<<ar[i]<<" "<<"Violate the heap";//print message with value

break;//using break keyword  

}

}

return 0;

}

Output:

1)

Enter a Number: -15

Enter a Number: -5

-5 Violate the heap

2)

Enter a Number: 45

Enter a Number: 0

Enter a Number: 55

55 Violate the heap

Explanation:

In the above-given C++ language code, an array "ar" and other integer variables " i,x,l1, j" is declared, in which "i" variable used in the loop for input values from the user end.In this loop two, if block is defined, that checks the array values and in the first, if the block it will increment the value of x, and in the second if the block, it will decrease the l1 value by 2.In the next step, j variable is used that is the index of the root of the subtree. In the next step, another if block is used, that checks heap condition, that increment the value of l1 variable. In the, if block it violate the heap rule and print its values.

"The principle of ______________ states that programs tend to access data and instructions nearby recently used data and instructions."

Answers

Answer:

Locality of reference.

Explanation:

In computing, The principle of locality of reference is the probability of a processor to repeatedly access the same set of memory locations within a small time interval. This reference of locality can be spatially based (repetitive usage of data within the same location on the computer memory), or temporally based (repetitive usage of a particular data or resources within a shot time interval). The ability of some computing system to perform this action increases their predictability, and efficiency of memory hierarchy use, among other abilities.

10.7 LAB: Fat-burning heart rate Write a program that calculates an adult's fat-burning heart rate, which is 70% of 220 minus the person's age. Complete fat_burning_heart_rate() to

Answers

Answer:

I've written in python

Explanation:

age = int(input("Enter the person's age: ")

def fat_burning_heart_rate(x):

rate =( 70/100 * 220 ) - age

print(fat_burning_heart_rate(age))

Which of the factors below is NOT a cause of online disinhibition?
O Anonymity
O Lack of nonverbal cues
Lack of tone of voice
Smartphones

Answers

Answer:

Lack of tone of voice

Explanation:

Remember, online disinhibition refers to the tendency of people to feel open in communication via the internet than on face to face conversations.

A lack of tone voice isn't categorized as a direct cause of online disinhibition because an individual can actually express himself using his tone of voice online. However, online disinhibition is caused by people's desire to be anonymous; their use of smartphones, and a lack of nonverbal cues.

If every company is now a technology company, then what does this mean for every student attending a business college

Answers

Answer:

Explanation:

There are all sorts of possibilities for, say, inserting new technologies into existing processes. But most of these improvements are incremental. They are worth doing; in fact, they may be necessary for survival. No self-respecting airline, for instance, could do without an application that lets you download your boarding pass to your mobile telephone. It saves paper, can't get lost and customers want it.

But while it's essential to offer applications like the electronic boarding pass, those will not distinguish a company. Electronic boarding passes have already been replicated by nearly every airline. In fact, we've already forgotten who was first.

Giving BRANLIEST IFF CORRECT What is the label called for each column in a database? Field File Record Title

Answers

Answer:

Title

Explanation:

the others describe other items in a database

Answer:

Title

Explanation: idek but I got it correct on a quiz

who is considered as the father of computer science?​

Answers

Charles Babbage is known as father of computer science because he designed the original programmable computer .

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3. Explain why the process of project planning is iterative and
why a plan must be continually reviewed during a software
project.
Ans:​

Answers

Answer:

because they inspecting or checking how there works good or not good there are under there work what a result cause they want a good and beautiful work

They're inspecting or checking how there works good or not good there are beneath there job what a result because they want a nice and beautiful work.

What is project planning?

The discipline of project planning focuses on how to complete a project within a predetermined timeframe, often with predetermined stages and resources. According to one method of project planning, the first stage is to set definable goals. scheduling the deliverables definition.

A project plan is made in order to effectively provide a result for the internal or external client. Project deliverables include, for instance, software products, design documentation, and other assets listed in the project plan. Deliverables for projects are frequently asked for as software products.

A project plan is a group of official documents that describe the execution and control phases of the project. The strategy considers risk management, resource management, and communications in addition to scope, cost, and schedule baselines.

Thus, They're inspecting or checking how there works good or not good.

For more information about project planning, click here:

https://brainly.com/question/27992266

#SPJ2

Create a python program that display this
Factorial Calculator
Enter a positive integer: 5
5! = 1 x 2 x 3 x 4 x 5
The factorial of 5 is: 120
Enter a positive integer: 4
4! = 1 x 2 x 5 x 4
.
The factorial of 4 is: 24
Enter a positive integer: -5
Invalid input! Program stopped!​

Answers

Answer:

vxxgxfufjdfhgffghgfghgffh

Marco travels often and does not have consistent wireless Internet service. He frequently uses his mobile phone service to provide Internet access to his tablet.

Which network type is Marco using?


LAN


PAN


WAN


MAN

Answers

Answer:

PAN

Explanation:

For wireless devices like laptops, tablets, wireless desktops, and cellphones to communicate, a wireless LAN normally has a Wi-Fi router or wireless access point. A wireless LAN is essentially a LAN that doesn't use cables. Thus, option B is correct.

What are the PAN  network type is Marco using?

The computer network that links computers and other devices within a specific person's range is known as a personal area network (PAN). PAN stands for personal area network and gives a network range within a person's range, often within a range of 10 meters (33 feet).

A PAN is a network that primarily serves a tiny space, usually a single small room. It allows computer devices to share data and information with other nearby computers.

Therefore, Whereas in LAN, computers are connected via a network over a short distance, such as within a building, or in a single computer network made up of several computers.

Learn more about network type here:

https://brainly.com/question/29515062

#SPJ2

Which branch structure does a program use to output "Yes" if a variable's value is positive, or "No" otherwise?

Answers

Answer:

Selection control structure

Explanation:

This is often referred to as if-conditional statement;

This condition tests for a condition and performs a sequence of operation depending on the result of the condition;

Take for instance, the following program written in python

x = int(input("enter any number: "))

if x < 0:

  print("Yes")

else

  print("No")

The above checks if the input number is less than 0,

If the condition is true, it prints Yes

If otherwise, it prints No

Đánh giá hoạt động thanh toán điện tử của sinh viên

Answers

Answer:

CMON BRO

Explanation:

I DUNNO YOUR LAGUAGE

Giving Brainliest IFFF CORRECT

Jonathan needs to create a chart that shows the change in weight he can lift in weightlifting class. Which chart or graph should he use?

Bar graph

Column chart

Line graph

Pie chart

Answers

Answer:

line graph

Explanation:

the change in weight is linear

Answer:

Line Graph

Explanation:

Linear Weight change

Give five types of hardware resource and five types of data or software resource that can usefully be shared. Give examples of their sharing as it occurs in practice in distributed systems.

Answers

Answer:

Answered below

Explanation:

Hardware resources that can be usefully shared and also examples of their sharing include;

A) CPU servers, which carry out computations for clients.

B) Network capacity transmission of data or packet transmission is done using the same circuit, meaning many communication channels share the same circuit.

C) Screen networks windows systems which enable processes in remote computers to update the contents of their local server.

D) Memory cache server.

E) Disk file server, virtual disk server.

Softwares include;

A) Web-page web servers which allow client programs to have read-only access to page contents.

B) Database whose contents can be usefully shared.

C) File servers enable multiple users access to files .

D) Objects can be shared in distributed systems example shared ticket booking, whiteboard etc.

E) Exclusive lock which enables the coordination of accessing a special resource.

3. Coaxial/telephone cable sends
during the data transmission
signal

Answers

Answer:

high frequency signal.

________ databases are better than relational databases at handling unstructured data such as audio clips, video clips, and pictures.

Answers

Answer:

"Object-oriented" would be the correct choice.

Explanation:

An object-oriented database seems to be a database that subscribes to a framework containing object-depicted details. Throughout the context of the relational database management system, object-oriented is a unique product that is not as popular and most well-known as traditional web applications.This indicates that internet connectivity to existing records has to implement the previously defined connections for interacting components established by that same containers.

1. Cases Prudence has a special (cubic) die. The values on its face are the integers from 1 to 6, but they are not arranged ae in a normal die. When Prudence first tosses the die, the sum of the values on the four side faces is 15. In her second toss, the sum of these values is 12. Find what value appears in the face opposite 6 on Prudence’s special die. (Hint: what are possible values for the top and bottom face when the sum of the side faces is 12).

Answers

Answer:

The definition of the subject in question is presented in section elsewhere here.

Explanation:

The total value of almost all of the quantities mostly on unique die features will indeed be:  

⇒  [tex]1+2+3+4+5+6[/tex]

⇒  [tex]21[/tex]

The number of the 4 lateral sides throughout the first tossing will be 15, therefore determines the total of both top and bottom features would be:

⇒  [tex]21-15[/tex]

⇒  [tex]6[/tex]

The compositions including its {top and bottom} current valuations that give a total of Six include {1, 5}, {5, 1}, {2, 4}, as well as {4, 2}. Consequently, because neither of those variations includes Six, it indicates that six doesn't really feature on the very first toss mostly on high or low hand.  

And then let's look at second tossed situation. Throughout this particular instance, the total amount obtained would be 12.

Which means it has to be the number of top and bottom:

⇒  [tex]21-12[/tex]

⇒  [tex]9[/tex]

{4, 5},{5, 4}, {6, 3}, and {3, 6} seem to be the {top, bottom} facial variations that provide a total of Nine.  

Currently regarding all the tosses, {6, 3} and perhaps {3, 6} have been the only situations wherein the 6 emerge towards top or bottom. Then the value of the unique die mostly on face identical to 6 must've been 3.

What does filtering a record do?
O It suppress some records and shows others.
O It removes records from the document permanently.
O It sorts all the data in the record.
O It arranges all the information in one column.​

Answers

Answer:

It sorts all the data in record.

Explanation:

third one is verified

By Using the following schema, answer the following SQL queries and commands: Product(P_code.P_name, P_price, P_on_hand,vend_code) Vender(vend_code, vend_fname, vend_areacode, vend_phone) 1- find the venders names who sell products in TN-5 area and their names include "dan". 2- find the code, name and vender code of product that has price between 1500S and 2500S and the product that has price between 48005 and 5600S. 3- Find the name, and code of venders who had 5 microwaves that has price less than 3500S. 4- Find the phone numbers of venders who sell Televisions. 5- Delete the records of venders who their first name is 'smith'

Answers

Explanation:

answer me pls i need sol bbbd

In the design phase of the systems development life cycle (SDLC), the _____ design is an overview of the system and does not include hardware or software choices. Group of answer choices

Answers

Answer:

"Conceptual" is the correct answer.

Explanation:

SDLC would be a particular implementation of a software administration that defines the processes responsible for the creation of such an organization or project, through preliminary feasibility studies to accomplished program activities.The conceptual design seems to be the very first phase of the cycle of brand management, using designs as well as other diagrams or models. It offers an implementation of the study product as a result of a collection of interconnected values and principles about what it will do, function, and look in a user-friendly way.
Other Questions
Two objects, one of mass m and the other of mass 2m, are dropped from the top of a building. If there is no air resistance, when they hit the ground A) both will have the same kinetic energy. B) the heavier one will have twice the kinetic energy of the lighter one. C) the heavier one will have four times the kinetic energy of the lighter one. D) the heavier one will have half the kinetic energy of the lighter one. E) the heavier one will have one-fourth the kinetic energy of the lighter one. account question started business with cash rs 2,00,000 Phn tch cc quan im ca mt s nh gio dc v vic s dng tc phm vn hc trong gio dc mm non. T rt ra kt lun. 36x7 please EXPLAIN the process of the multiplication plse Choose the word that has the different main stress from that of the others.1. A. caring B. approach C. attract D. confide2. A. supportive B. determine C. sacrifice D. contractual A graph of a system of equation with different slopes will have no solution ? You have a choice to invest in one of three different college funds to save up for college. You need to save at least $14,000 for your first year. In which of the three accounts do you choose to invest your money given that you have $10,000 to invest and you would like to accrue as much interest as possible? find LCM of 60,40 and 90 Prime factorization of 797 method also The image of (5,-4) reflected across the y-axis isA. (-5, 4)B. (-5, 4)C. (5, 4)D. (5, 4)The image of (3,-2) reflected across the line x - 1 isA. (-1, -2)B. (3,0)C. (0, -2)D. (-2, -1) Compute the value of each expression: 4|33| a lone segment has ______ endpoints.1) three2)two3)zero4)one Evaluate:[tex]{ \int \limits^\pi_{ \frac{1}{4}\pi}{ {e {}^{2 \sigma} (\sqrt{1 - { \sigma}^{2} } ) d \sigma}}}[/tex] (2.75 x 107) + (1.23 x 108) simplify What did the Fugitive Slave Act of 1850 do?It gave slave owners the right to recapture their runaway slaves.It allowed slaves to escape to the free North.It gave Northerners the right to hide and protect runaway slaves.It allowed slaves to escape to Canada. Approximately 70% of a person's body weight is made up of water. If a body weighs 50 kilograms, what would be the approximate weight of the water in his body? (A): 20 kilograms (B): 35 kilograms (C): 42 kilograms (D): 50 kilograms The terms of trade must be higher (graphically to the right) of a nation's own production __________________ The theme expressed in this paragraph is thateven wise people do foolish things at times.those who sacrifice for others are great people.sacrificing one's most prized possessions is foolish.wise people are often those with the fewestpossessions. Luther CorporationConsolidated Income StatementYear ended December 31 (in $millions)2006 2005Total sales 610.1 578.8Cost of sales (500.2) (355.3)Gross profit 109.9 223.5Selling, general, andadministrative expenses (40.5) (38.7)Research and development (24.6) (21.8)Depreciation and amortization (3.6) (3.9)Operating income 41.2 159.1Other income Earnings before interest and taxes (EBIT) 41.2 159.1Interest income (expense) (25.1) (15.3)Pretax income 16.1 143.8Taxes (5.5) (50.33)Net income 10.6 93.47Price per share $16 $15Sharing outstanding (millions) 10.2 8.0Stock options outstanding (millions) 0.3 0.2Stockholders' Equity 126.6 63.6Total Liabilities and Stockholders' Equity 533.1 386.7Refer to the income statement above. Luther's operating margin for the year ending December 31, 2005 is closest to:_________.A. 13.7413.74%B. 21.9921.99%C. 27.4927.49%D. 32.9932.99% ASAP PleaseWhich of the following statements about the world's population is the most accurate?A) It has grown rapidly in the last few centuries.B)It has grown at a steady rate for the last 1,000 years.C)It is growing more slowly now than 100 years ago.D)It is growing fastest in rural areas.