Answers
1 Account
2 online
3 access
4 password
5 internet
6 email
Related Questions
What is the function of hard disk Which Computer was the first Computer to be developed
Answers
Answer:
The hard disk is a storage device designed to permanently store data, being secondary to the software in the computer. The ENIAC was the first modern computer to be developed and built, completing construction in 1946 and taking three years to build, but if ancient computers (people who computed by hand) are factored in, then the first computer would be way back in time, perhaps even extending to the B.C. years.
Explanation:
Hope this helped!
or Java,
program to perform this computa
3.
Isaac Newton devised a clever method to casily approximate the square root of a number without having
to use a calculator that has the square root function. Describe this method with illustration
Answers
Answer:
The illustration in Java is as follows:
import java.util.*;
import java.lang.Math.*;
class Main{
public static void main (String[] args){
Scanner input = new Scanner(System.in);
double num, root, temp;
num = input.nextDouble();
temp = num;
while (true){
root = 0.5 * ( (num / temp)+temp);
if (Math.abs(root - temp) < 0.00001){
break; }
temp = root; }
System.out.println("Root: "+root);
}}
Explanation:
This declares all necessary variables
double num, root, temp;
This gets input for num (i.e the number whose square root is to be calculated)
num = input.nextDouble();
This saves the input number to temp
temp = num;
This loop is repeated until it is exited from within the loop
while (true){
Calculate temporary square root
root = 0.5 * ( (num / temp)+temp);
The loop is exited, if the absolute difference between the root and temp is less than 0.00001
if (Math.abs(root - temp) < 0.00001){
break; }
Save the calculated root to temp
temp = root; }
This prints the calculated root
System.out.println("Root: "+root);
Which of the following statements describes a limitation of using a computer simulation to model a real-world object or system?
a. Computer simulations can only be built after the real-world object or system has been created.
b. Computer simulations only run on very powerful computers that are not available to the general public.
c. Computer simulations usually make some simplifying assumptions about the real-world object or system being modeled.
Answers
Answer:
The answer is "Option c".
Explanation:
Computer simulation, use of a machine to simulate a system's vibration signals by another modeled system's behaviors. A simulator employs a computer program to generate a mathematical model or representation of a true system. It usually gives a lot of simplifications concerning the physical image or system that is modeled, so this statement describes the limitation of using a computer simulation in modeling a real-world object or process.
A network technician is planning to update the firmware on a router on the network. The technician has downloaded the file from the vendor's website. Before installing the firmware update, which of the following steps should the technician perform to ensure file integrity?
a. Perform antivirus and anti-malware scans of the file.
b. Perform a hash on the file for comparison with the vendor’s hash.
c. Download the file a second time and compare the version numbers.
d. Compare the hash of the file to the previous firmware update.
Answers
Answer: B. Perform a hash on the file for comparison with the vendor’s hash.
Explanation:
Before installing the firmware update, the step that the technician should perform to ensure file integrity is to perform a hash on the file for comparison with the vendor’s hash.
Hashing refers to the algorithm that is used for the calculation of a string value from a file. Hashes are helpful in the identification of a threat on a machine and when a user wants to query the network for the existence of a certain file.
Which of followings are true or false?
a. Swapping two adjacent elements that are out of place removes only one inversion.
b. Any algorithm that sorts by exchanging adjacent elements requires O(n log n)
c. Shellsort with a proper distance function is faster than mergesort for a very large input (like sorting 1 billion numbers).
d. The average-case performance of quick sort is O(NlogN), but the best-case performance of quick sort is O(N) for a pre-sorted input.
e. The number of leaves in a decision tree for sorting n numbers by comparisons must be 2n.
f. The height of a decision tree for sorting gives the minimum number of comparisons in the best case.
g. Any decision tree that can sort n elements must have height Big-Omega (n log n).
h. Bucket-sort can be modeled by a decision tree.
Answers
Answer:
Explanation:
a. Swapping two adjacent elements that are out of place removes only one inversion.
Answer: True
b. Any algorithm that sorts by exchanging adjacent elements requires O(n log n)
Answer: False
c. Shellsort with a proper distance function is faster than mergesort for a very large input (like sorting 1 billion numbers).
Answer: True
d. The average-case performance of quick sort is O(NlogN), but the best-case performance of quick sort is O(N) for a pre-sorted input.
Answer: True
e. The number of leaves in a decision tree for sorting n numbers by comparisons must be 2n.
Answer: False
f. The height of a decision tree for sorting gives the minimum number of comparisons in the best case.
Answer: True
g. Any decision tree that can sort n elements must have height Big-Omega (n log n).
h. Bucket-sort can be modeled by a decision tree.
Answer: True
A technician is able to connect to a web however, the technician receives the error, when alternating to access a different web Page cannot be displayed. Which command line tools would be BEST to identify the root cause of the connection problem?
Answers
Answer:
nslookup
Explanation:
Nslookup command is considered as one of the most popular command-line software for a Domain Name System probing. It is a network administration command-line tool that is available for the operating systems of many computer. It is mainly used for troubleshooting the DNS problems.
Thus, in the context, the technician receives the error "Web page cannot be displayed" when he alternates to access different web page, the nslookup command is the best command tool to find the root cause of the connection problem.
What intangible benefits might an organization obtain from the development of an
information system?
Answers
Answer:
The immaterial benefits stem from the development of an information system and cannot easily be measured in dollars or with confidence. Potential intangible advantages include a competitive need, timely information, improved planning and increased flexibility in organisation.
Explanation:
Intangible advantages
Take faster decisionsCompetitive needMore information timelyNew, better or more information availability.Lower productivity and the lack of 'think outside' employees and managers as well as greater sales include the intangible costs of such an operational environment. All these factors improve when employees spend less of their time in addressing current methods of operation and are concerned about whether they will have a job or an employer in six months or a year. The automation level envisaged in this new system should enhance the overall efficiency of management. The operative controls and design functions should be simplified by tight system integrations with accessible automated database sources. However, it is difficult to describe the exact form of these simplifications.
Tangible costs of the new system include costs of analysis, design and construction of the system, such as the recruitment of contractors or new employees, and the assignment of existing staff. Also consideration shall be given to hardware, software purchased and operating costs. Intangible costs include disturbances to the current activities caused by development and deployment and potential adverse effects on the morals of employees.
While the new system may feel good in the long term, short-term stress and other negative consequences will still be present. In the way that Reliable does virtually everything, the system is the focus of a major change. An organisation's monumental change has widespread negative effects on operations and employees.
What are interpersonal skills for non-technical user
Answers
Answer:Non-Technical Skills ('NTS') are interpersonal skills which include: communication skills; leadership skills; team-work skills; decision-making skills; and situation-awareness skills.
Explanation:
My iPhone XR screen is popping out. Is it because I dropped it?
Answers
Answer:
Yes that is most likely why your screen is popping out.
Explanation:
Most likely
What type of editor is used to edit HTML code?What type of editor is used to edit HTML code?
Answers
For learning HTML we recommend a simple text editor like Notepad (PC) or TextEdit (Mac).
mark me brainliestt :))
Answer:
If you want to use HTML editor in windows, you can use notepad. And if you want to use HTML editor on your phone than you need to install any editor on your phone.
Explanation:
If you want to use another app than notepad in pc, laptop, mac, OS or Linux, you can download a editor known as Visual Studio Code. If you want to do another language you can also do it in it. You can do all programming languages in it.
Think Critically 5-1 Creating Flexible Storage.
It's been 6 months since the disk crash at CSM Tech Publishing, and the owner is breathing a little easier because you installed a fault-tolerant solution to prevent loss of time and data if a disk crashes in the future. Business is good, and the current solution is starting to get low on disk space. In addition, the owner has some other needs that might require more disk space, and he wants to keep the data on separate volumes. He wants a flexible solution in which drives and volumes aren't restricted in their configuration. He also wants to be able to add storage space to existing volumes easily without having to reconfigure existing drives. He has the budget to add a storage enclosure system that can contain up to 10 HDDs. Which Windows feature can accommodate these needs, and how does it work?
Answers
Answer:
The Storage Spaces feature in Windows
Explanation:
The Storage Spaces feature can be used here. This feature was initiated in Windows server 2012 and allows the user store his files on the cloud or virtual storage. This makes it possible to have a flexible storage as there is a storage pool which is updated with more storage capacity as it decreases. The feature also offers storage security, backing up files to other disks to protect against total loss of data on a failed disk.
Q. 2. What will be the output of the following code?
//printf("Hello\n");
printf("Girls");
Answers
Answer:
Just two outputs \n a line break so:
Hello
Girls
A python code only runs the except block when _____. Group of answer choices all the statements in the try block are executed an error occurs in the preceding try block the programmer manually calls the except block an error occurs anywhere in the code
Answers
Answer:
Python only running exception block when try block fails
Explanation:
i do cyber security and i was learning this in high school
In Python, try and except statements are used to catch and manage exceptions. Statements that can generate exceptions were placed within the try clause, while statements that handle the exception are put within the except clause.
An exception should be caught by except block, which is used to test code for errors that are specified in the "try" block. The content of the "except" block is executed if such a fault/error appears.In Python, the exception block only runs when an error occurs in the try block.Therefore, the answer is "try block fails ".
Learn more:
brainly.com/question/19154398
(Ramanujan's Taxi) Srinivasa Ramanujan indian mathematician who became famous for his intuition for numbers. When the English mathemematician G.H. Hardy came ot visit him in the hospital one day, Hardy remarked that the number if his taxi was 1729, a rather dull number. To which Ramanujan replied, "No, Hardy! It is a very interesting number. It is the smallest number expressible as the sum of two cubes in two different ways." Verify this claim by writing a program Ramanujan.java that takes a command-line argument N and prints out all integers less than or equal to N that can be expressed as the sum of two cubes in two different ways. In other words, find distinct positive integers a, b, c, and d such that а3 + b3 = c3 - d3. Hint: Use four nested for loops, with these bounds on the loop variables: 0 < a < 3√N, a < b < 3√N - a3, a < c < 3√N and c < d < 3√N - C3; do not explicitly compute cube roots, and instead use x . x *x < y in place of х < Math.cbrt (y).
$ javac Ramanujan.java
$ java Ramanujan 40000
1729 = 1"3 + 12^3 = 9^3 + 10"3
4104 = 2^3 + 16^3 = 9^3 + 15^3
13832 = 2^3 + 24^3 = 18^3 + 20^3
39312 = 2^3 + 34^3 = 15^3 + 33^3
32832 = 4^3 + 32^3 = 18^3 + 30^3
20683 = 10^3 + 27^3 = 19^3 + 24^3
Answers
Answer:
Here the code is given as follows,
Explanation:
Code:
public class Ramanujan {
public static void main(String[] args) {
// check cmd argument
int n = Integer.parseInt(args[0]);
// checking a^3 + b^3 = c^3 + d^3
// outer loop
for (int a = 1; (a*a*a) <= n; a++) {
int a3 = a*a*a;
// no solution is possible, since upcoming a values are more
if (a3 > n)
break;
// avoid duplicate
for (int b = a; (b * b * b) <= (n - a3); b++) {
int b3 = b*b*b;
if (a3 + b3 > n)
break;
// avoid duplicates
for (int c = a + 1; (c*c*c) <= n; c++) {
int c3 = c*c*c;
if (c3 > a3 + b3)
break;
// avoid duplicates
for (int d = c; (d * d * d) <= (n - c3); d++) {
int d3 = d*d*d;
if (c3 + d3 > a3 + b3)
break;
if (c3 + d3 == a3 + b3) {
System.out.print((a3+b3) + " = ");
System.out.print(a + "^3 + " + b + "^3 = ");
System.out.print(c + "^3 + " + d + "^3");
System.out.println();
}
}
}
}
}
}
}
Telecommunications and software development are examples of information technology careers.
True
False
Answers
Answer:
True
Explanation:
Information technology may be described as the use of systems to aid application designs capable of sending and receiving information and building a communication pathway for individuals and companies. It also involves retrieving, storing large chunks of information and organizational data usually in databases to fast track the seamless functioning of the organization's system. The information technology ecosystem is very broad from those charged with ensuring effective communication such as telecommunications platforms and those who build and develop technologies for effective communication and data storage. Hence, both Telecommunications and software development are examples of information technology careers.
Clocks (also called timers) are essential to the operation of any multiprogrammed system. They maintain the time of day, and prevent one process from monopolizing the CPU. How are clocks implemented
Answers
Answer:
The answer is below
Explanation:
The clock in the CPU is made of three elements including the following:
1. Crystal oscillator
2. A counter
3. A holding register
All these clock elements combined and generate interrupts at known periods or duration.
However, the clock has a powered battery back up which is implemented with a form of low-power circuitry similar to that of digital watches.
The purpose is to prohibit the current time from being failed when the computer is powered off or shut down.
Create a list of lists, named hamsplits, such that hamsplits[i] is a list of all the words in the i-th sentence of the text. The sentences should be stored in the order that they appear, and so should the words within each sentence. Regarding how to break up the text into sentences and how to store the words, the guidelines are as follows: Sentences end with '.', '?', and '!'. You should convert all letters to lowercase. For each word, strip out any punctuation. For instance, in the text above, the first and last sentences would be: hamsplits[0] == ['and', 'can', 'you', 'by', ..., 'dangerous', 'lunacy'] hamsplits[-1] == ['madness', 'in', 'great', ..., 'not', 'unwatchd', 'go']
Answers
Answer:
Explanation:
The following code is written in Python. It takes in a story as a parameter and splits it into sentences. Then it adds those sentences into the list of lists called hamsplits, cleaned up and in lowercase. A test case is used in the picture below and called so that it shows an output of the sentence in the second element of the hamsplits list.
def Brainly(story):
story_split = re.split('[.?!]', story.lower())
hamsplits = []
for sentence in story_split:
hamsplits.append(sentence.split(' '))
for list in hamsplits:
for word in list:
if word == '':
list.remove(word)
Information systems cannot solve some business problems. Give three examples and explain why technology cannot help
Answers
Answer:
The following are brief descriptions or the three examples of the declaration presented.
Explanation:
The information capable of supplying just the data in a method to achieve the following objectives. However, the machine cannot decide about the company.Technology is unable to document as well as to adapt it according to the scenario, everything remains to be accomplished by hand.Individuals must thus recognize but instead capitalize mostly on regions of opportunity.Solve the following linear program graphically (each line represents one unit). The feasible region is indicated by the shading and the corner points have been listed for you. Determine the objective function value at the corner points and indicate the optimal solution (if any). Minimize: Z
Answers
Answer:
(a): The value of the objective function at the corner points
[tex]Z = 10[/tex]
[tex]Z = 19[/tex]
[tex]Z = 15[/tex]
(b) The optimal solution is [tex](6,2)[/tex]
Explanation:
Given
[tex]Min\ Z = X_1 + 2X_2[/tex]
Subject to:
[tex]-2X_1 + 5X_2 \ge -2[/tex] ---- 1
[tex]X_1 + 4X_2 \le 27[/tex] ---- 2
[tex]8X_1 + 5X_2 \ge 58[/tex] --- 3
Solving (a): The value of the at the corner points
From the graph, the corner points are:
[tex](6,2)\ \ \ \ \ \ (11,4)\ \ \ \ \ \ \ \ (3,6)[/tex]
So, we have:
[tex](6,2)[/tex] ------- Corner point 1
[tex]Min\ Z = X_1 + 2X_2[/tex]
[tex]Z = 6 + 2 * 2[/tex]
[tex]Z = 6 + 4[/tex]
[tex]Z = 10[/tex]
[tex](11,4)[/tex] ------ Corner point 2
[tex]Min\ Z = X_1 + 2X_2[/tex]
[tex]Z = 11 + 2 * 4[/tex]
[tex]Z = 11 + 8[/tex]
[tex]Z = 19[/tex]
[tex](3,6)[/tex] --- Corner point 3
[tex]Min\ Z = X_1 + 2X_2[/tex]
[tex]Z = 3 + 2 * 6[/tex]
[tex]Z = 3 + 12[/tex]
[tex]Z = 15[/tex]
Solving (b): The optimal solution
Since we are to minimize Z, the optimal solution is at the corner point that gives the least value
In (a), the least value of Z is: [tex]Z = 10[/tex]
So, the optimal solution is at: corner point 1
[tex](6,2)[/tex]
A compound Boolean expression created with the __________ operator is true only if
both of its subexpressions are true.
a. and
b. or
c. not
d. both
Answers
Answer:
the answer is AND
Explanation:
The condition is " both of its sunexpressions are true"
So OR us not the answer. Not and Borh are not the proper Boolean language.
what are the functions of the windows button, Task View and Search Box? give me short answer
Answers
Answer:
Windows button = You can see a Start Menu
Task view = You can view your Tasks
Search Box = You can search any app you want in an instance
Create a program that simulates a race between several vehicles. Design and implement an inheritance hierarchy that includes Vehicle as an abstract superclass and several subclasses
Answers
Answer:
Explanation:
The following program is written in Java. Since there was not much information provided in the question I created a Vehicle superclass with a couple of subclasses for the different types of vehicles (motorcycle, sedan, truck). Each one having its own unique attributes. The vehicle class also has an attribute for the position of the vehicle in the race.
class Vehicle {
int year, wheels, position;
public Vehicle(int year, int wheels, int position) {
this.year = year;
this.wheels = wheels;
this.position = position;
}
public int getYear() {
return year;
}
public void setYear(int year) {
this.year = year;
}
public int getWheels() {
return wheels;
}
public void setWheels(int wheels) {
this.wheels = wheels;
}
public int getPosition() {
return position;
}
public void setPosition(int position) {
this.position = position;
}
}
class Motorcycle extends Vehicle {
String manufacturer;
double speed;
public Motorcycle(int year, int wheels, int position) {
super(year, wheels, position);
}
public Motorcycle(int year, int wheels, int position, String manufacturer, double speed) {
super(year, wheels, position);
this.manufacturer = manufacturer;
this.speed = speed;
}
public String getManufacturer() {
return manufacturer;
}
public void setManufacturer(String manufacturer) {
this.manufacturer = manufacturer;
}
public double getSpeed() {
return speed;
}
public void setSpeed(double speed) {
this.speed = speed;
}
}
class Sedan extends Vehicle {
int passengers;
String manufacturer;
double speed;
public Sedan(int year, int wheels, int position) {
super(year, wheels, position);
}
public Sedan(int year, int wheels, int position, int passengers, String manufacturer, double speed) {
super(year, wheels, position);
this.passengers = passengers;
this.manufacturer = manufacturer;
this.speed = speed;
}
public int getPassengers() {
return passengers;
}
public void setPassengers(int passengers) {
this.passengers = passengers;
}
public String getManufacturer() {
return manufacturer;
}
public void setManufacturer(String manufacturer) {
this.manufacturer = manufacturer;
}
public double getSpeed() {
return speed;
}
public void setSpeed(double speed) {
this.speed = speed;
}
}
class Truck extends Vehicle {
int passengers;
String manufacturer;
double speed;
public Truck(int year, int wheels, int position) {
super(year, wheels, position);
}
public Truck(int year, int wheels, int position, int passengers, String manufacturer, double speed) {
super(year, wheels, position);
this.passengers = passengers;
this.manufacturer = manufacturer;
this.speed = speed;
}
public int getPassengers() {
return passengers;
}
public void setPassengers(int passengers) {
this.passengers = passengers;
}
public String getManufacturer() {
return manufacturer;
}
public void setManufacturer(String manufacturer) {
this.manufacturer = manufacturer;
}
public double getSpeed() {
return speed;
}
public void setSpeed(double speed) {
this.speed = speed;
}
}
trình bày ngắn gọn hiểu biết của bản thân về mạng máy tính theo mô hình OSI hoặc TCP/IP
Answers
Answer:
OSI đề cập đến Kết nối hệ thống mở trong khi TCP / IP đề cập đến Giao thức điều khiển truyền. OSI theo cách tiếp cận dọc trong khi TCP / IP theo cách tiếp cận ngang. Mô hình OSI, lớp truyền tải, chỉ hướng kết nối trong khi mô hình TCP / IP là cả hướng kết nối và không kết nối.
Explanation:
dab
which of the following indicates that the loop should stop when the value in the quantity variable is less than the number 50
Answers
Answer:
while (quantity >= 50)
Explanation:
Required
Stop when quantity is less than 50
To do this, we make use of a while statement and the syntax is:
while (condition){ }
If the loop should stop when quantity is less than 50; then it means the loop would continue when quantity is greater or equal to 50
So, we have:
while (quantity >= 50)
HELP ITS A TESTTT!!!Which symbol shows auto correct is in use?
A-a white light bulb
B-A green plus sign
C-A flashing red circle
D-A yellow lightning bolt
Answers
Answer:
D
Explanation:
Please answer
NO LINKS
Answers
Answer:
Please find the attached file for the complete solution:
Explanation:
Find the basic period and basic frequency of the function g(t)=8cos(10πt)+sin(15πt)
Answers
Answer:
The period is
[tex]\frac{2\pi}{5} [/tex]
The frequency is
[tex] \frac{5}{2\pi} [/tex]
Explanation:
The period of both functions will be LCM of both period.
The period of cos is
[tex] \frac{\pi}{5} [/tex]
The period of sin is
[tex] \frac{2\pi}{15} [/tex]
Let convert each into degrees.
[tex] \frac{\pi}{5} = 36[/tex]
[tex] \frac{2\pi}{15} = 24[/tex]
Find the least common multiple between 36 and 24, which is 72.
Convert 72 into radians
[tex]72 = \frac{2\pi}{5} [/tex]
The period is 2pi/5.
The frequency is equal to
1/period.
so the frequency is
[tex] \frac{1}{ \frac{2\pi}{5} } = \frac{5}{2\pi} [/tex]
computer is an ............. machine because once a task is intitated computer proceeds on its own t ill its completion.
Answers
Answer:
I think digital,versatile
computer is an electronic digital versatile machine because once a task is initiated computer proceeds on its own till its completation.
Marketing có phải là bán hàng hay không? Giải thích?
Answers
Answer:
Sự khác biệt giữa bán hàng và tiếp thị là bán hàng tập trung vào làm việc trực tiếp với khách hàng tiềm năng để khiến họ chuyển đổi, trong khi tiếp thị tập trung vào việc khơi dậy sự quan tâm đến sản phẩm của bạn.
Answer:
Marketing không phải là bán hàngg
Explanation:
Nó là công cụ hỗ trợ cho việc bán hàng
What is the name given to software that decodes information from a digital file so that a media player can display the file? hard drive plug-in flash player MP3
Answers
Answer:
plug-in
Explanation:
A Plug-in is a software that provides additional functionalities to existing programs. The need for them stems from the fact that users might want additional features or functions that were not available in the original program. Digital audio, video, and web browsers use plug-ins to update the already existing programs or to display audio/video through a media file. Plug-ins save the users of the stress of having to wait till a new product with the functionality that they want is produced.
Answer:
B plug-in
Explanation:
Edge2022