what is the origin of cellular phones
Answers
Answer:
The first handheld mobile phone was demonstrated by Martin Cooper of Motorola in New York City in 1973, using a handset weighing c. 2 kilograms (4.4 lbs).[2] In 1979, Nippon Telegraph and Telephone (NTT) launched the world's first cellular network in Japan.
Explanation:
i hope help you :)
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Related Questions
DO NOT DESIGN A CLASS, THIS MUST BE A PROCEDURAL DESIGN.
You are given a list of students’ names and their test scores on a file (StudentData.txt in the replit
directory). The file has one name and one test score per line. Assume that the number of records on the
file is not known in advance (i.e., your program should run with any number of records without having
to be recompiled). Design a program that:
Reads the student names and test score records from the data file into parallel arrays or an
array of structs
Given a list of scores, calculate and return the average of the scores in the list
Given a list of scores, find and return the highest score in the list
Given the average score, the list(s) of student names and scores, return a list of students who
scored below average
Given the highest score, the list(s) of student names and scores, return a list of students with the
highest score
Write a report that displays the average test score and prints the names of all the students who
scored blow average and then displays the highest score and the names of students who got the
highest score.
This is the text file (studentscores.txt):
Olivia 68
Noah 74
Emma 62
Liam 92
Amelia 99
Oliver 100
Ava 65
Elijah 64
Sophia 93
Lucas 99
Isabella 88
Mateo 77
Mia 90
Gold 56
Luna 99
Levi 96
Charlotte 95
Ethan 77
Evelyn 83
James 59
Harper 64
Asher 90
Ella 66
Leo 93
Gianna 91
Luca 59
Aurora 67
Benjamin 94
Scarlett 58
Grayson 65
Nova 71
Aiden 61
Ellie 53
Ezra 87
Answers
u owe me :) This is in C++
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
using namespace std;
// define a struct to hold student data
struct Student {
string name;
int score;
};
// function to read student data from file
vector<Student> readStudentData(string filename) {
vector<Student> students;
ifstream inputFile(filename);
if (inputFile.is_open()) {
string line;
while (getline(inputFile, line)) {
// split line into name and score
int spacePos = line.find(" ");
string name = line.substr(0, spacePos);
int score = stoi(line.substr(spacePos+1));
// create student struct and add to vector
Student student = {name, score};
students.push_back(student);
}
inputFile.close();
} else {
cout << "Unable to open file" << endl;
}
return students;
}
// function to calculate the average score of a list of scores
double calculateAverageScore(vector<int> scores) {
double sum = 0;
for (int i = 0; i < scores.size(); i++) {
sum += scores[i];
}
return sum / scores.size();
}
// function to find the highest score in a list of scores
int findHighestScore(vector<int> scores) {
int highest = scores[0];
for (int i = 1; i < scores.size(); i++) {
if (scores[i] > highest) {
highest = scores[i];
}
}
return highest;
}
// function to find students who scored below the average
vector<string> findStudentsBelowAverage(vector<Student> students, double averageScore) {
vector<string> belowAverageStudents;
for (int i = 0; i < students.size(); i++) {
if (students[i].score < averageScore) {
belowAverageStudents.push_back(students[i].name);
}
}
return belowAverageStudents;
}
// function to find students who got the highest score
vector<string> findStudentsWithHighestScore(vector<Student> students, int highestScore) {
vector<string> highestScoringStudents;
for (int i = 0; i < students.size(); i++) {
if (students[i].score == highestScore) {
highestScoringStudents.push_back(students[i].name);
}
}
return highestScoringStudents;
}
int main() {
// read student data from file
vector<Student> students = readStudentData("studentscores.txt");
// calculate average score
vector<int> scores;
for (int i = 0; i < students.size(); i++) {
scores.push_back(students[i].score);
}
double averageScore = calculateAverageScore(scores);
// find students who scored below average
vector<string> belowAverageStudents = findStudentsBelowAverage(students, averageScore);
// find highest score
int highestScore = findHighestScore(scores);
// find students who got the highest score
vector<string> highestScoringStudents = findStudentsWithHighestScore(students, highestScore);
// display report
cout << "Average test score: " << averageScore << endl;
cout << "Students who scored below average: ";
for (int i = 0; i < belowAverageStudents.size(); i++) {
cout << belowAverageStudents[i] << " ";
}
cout << endl;
Complete the sentence.
____ use only apps acquired from app stores.
O tablets
O laptops
O servers
O desktops
Answers
Answer:
Tablets
Explanation:
I say so
HELP NOW PLS now now now
Answers
Answer:
6.enable data to pass between computers in a network to aid communication between users. As a network engineer, you'll have responsibility for setting up, developing and maintaining computer networks within an organisation or between organisations.
7.Sony
At times, what seems to be an effective value network can also be vulnerable to quickly losing effectiveness. At one time, Sony Corporation set up a value network designed to have a "one-stop" gaming experience for its customers. From 2003 to 2008, Sony designed an all-encompassing gaming portal. However, the network was disrupted when computer hackers began breaking into the system and retrieving sensitive banking data from the network users. As a result, the effectiveness of the network was severely compromised.
Explanation:
What is the unit that a CPU’s performance is measured in? What does it mean? Give examples of two different types of CPU’s and in what computer system you are likely to find them in.
Answers
Answer:
The unit that a CPU's performance is measured in CPU's performance is dependent on its speed and clock rate. Both the speed and clock rate is measured in hertz or Hz. A core works on one task while another core works on a different task. So the more cores a CPU has, the faster and efficient the computer will be. Single Core CPUs; Single core CPUs are the oldest computer CPUs. These CPUs can only focus on one operation at a time so they were not very good at multi-tasking.
Hope this helped you!
Explanation:
Clock speed is one of your CPU’s key specifications.
The performance of your CPU has a major impact on the speed at which programs load. However, there are a few different ways to measure processor performance. Clock speed (also “clock rate” or “frequency”) is one of the most significant.
The higher clock speed means a faster CPU.
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Management wants to ensure any sensitive data on company-provided cell phones is isolated in a single location that can be remotely wiped if the phone is lost. Which of the following technologies BEST meets this need?a. Geofencingb. containerizationc. device encryptiond. Sandboxing
Answers
Answer:
B. Containerization.
Explanation:
In this scenario, management wants to ensure any sensitive data on company-provided cell phones is isolated in a single location that can be remotely wiped if the phone is lost. The technology which best meets this need is containerization.
In Computer science, containerization can be defined as a process through which software applications are used or operated in an isolated space (environment). It uses an operating system level virtualization method, such as a single host OS kernel, UFS, namespaces, Cgroups, to run software applications.
Hence, using the containerization technology makes it easy to wipe off the cell phones if lost because it is isolated in a single location.
Is the intersection of a column and a row
Answers
A Cell hope you enjoy your answer
In Coral Code Language - A half-life is the amount of time it takes for a substance or entity to fall to half its original value. Caffeine has a half-life of about 6 hours in humans. Given the caffeine amount (in mg) as input, output the caffeine level after 6, 12, and 18 hours.
Ex: If the input is 100, the output is:
After 6 hours: 50.0 mg
After 12 hours: 25.0 mg
After 18 hours: 12.5 mg
Note: A cup of coffee has about 100 mg. A soda has about 40 mg. An "energy" drink (a misnomer) has between 100 mg and 200 mg.
Answers
To calculate the caffeine level after 6, 12, and 18 hours using the half-life of 6 hours, you can use the formula:
Caffeine level = Initial caffeine amount * (0.5 ^ (time elapsed / half-life))
Here's the Coral Code to calculate the caffeine level:
function calculateCaffeineLevel(initialCaffeineAmount) {
const halfLife = 6; // Half-life of caffeine in hours
const levelAfter6Hours = initialCaffeineAmount * Math.pow(0.5, 6 / halfLife);
const levelAfter12Hours = initialCaffeineAmount * Math.pow(0.5, 12 / halfLife);
const levelAfter18Hours = initialCaffeineAmount * Math.pow(0.5, 18/ halfLife);
return {
'After 6 hours': levelAfter6Hours.toFixed(1),
'After 12 hours': levelAfter12Hours.toFixed(1),
'After 18 hours': levelAfter18Hours.toFixed(1)
};
}
// Example usage:
const initialCaffeineAmount = 100;
const caffeineLevels = calculateCaffeineLevel(initialCaffeineAmount);
console.log('After 6 hours:', caffeineLevels['After 6 hours'], 'mg');
console.log('After 12 hours:', caffeineLevels['After 12 hours'], 'mg');
console.log('After 18 hours:', caffeineLevels['After 18 hours'], 'mg');
When you run this code with an initial caffeine amount of 100 mg, it will output the caffeine levels after 6, 12, and 18 hours:
After 6 hours: 50.0 mg
After 12 hours: 25.0 mg
After 18 hours: 12.5 mg
You can replace the initialCaffeineAmount variable with any other value to calculate the caffeine levels for different initial amounts.
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What is the correct way of referring to an external CSS?
Answers
The correct way of referring to an external CSS is use the <link> tag inside the head element.
How can external CSS be reffered to?It should be noted that External stylesheets use the <link> tag which can be seen in in the head element., howerv the rel attribute helps to shed light to the link which is very common to the way the sheet is arranged.
Therefore, External CSS can be decribed as the type of CSS that can be utilized in the process of adding styling to multiple HTML pages and this can help in the designing of the layout of many HTML web pages .
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Robyn needs to ensure that a command she frequently uses is added to the Quick Access toolbar. This command is not found in the available options under the More button for the Quick Access toolbar. What should Robyn do?
Access Outlook options in Backstage view.
Access Outlook options from the Home tab.
Access Quick Access commands using the More button.
This cannot be done.
Answers
Which term describes the first operational model of a design such as a game?
Storyboard
Prototype
Flowchart
Feedback
Answers
Answer:
I believe its prototype, but I could be wrong.
You can run a macro by: Selecting the button assigned, Using the shortcut keys assigned, Using the view tab, Selecting run macro from the status bar
Answers
Answer:
Run a macro by pressing a combination shortcut key In the Macro name box, click the macro that you want to assign to a combination shortcut key. Click Options. The Macro Options dialog box appears. In the Shortcut key box, type any lowercase or uppercase letter that you want to use with the shortcut key.
Explanation:
Answer:
the answer is D... Macros can carry viruses that can harm a computer.
Explanation:
YOUR WELCOME BABES!!!
A standard method for labeling digital files is called a file-labeling what? Question 5 options: protocol tool setting configuration
Answers
Answer:What is the file-labeling protocol (standard method for labeling files)--protocol
Explanation:
Describe two reasons to use the Internet responsibly. Explain what might happen if the Internet use policies were broken at
your school.
Answers
Answer: You don't want to download any virus and Chat rooms with stranger can be harmful
Explanation: You can get a virus on your school device, get yourself in harmful situations and your passwords might not be safe
What is the most important function of GIS and why?; What are the 4 functions of GIS?; What are the three major purposes of GIS?; What are the 6 functions of a GIS?
Answers
Mapping: GIS allows users to create maps that show the location of different features, such as roads, buildings, rivers, and other features. These maps can be used for a wide range of purposes, such as planning, analysis, and decision-making.
Data analysis: GIS allows users to analyze data in a spatial context, which can help them to better understand patterns, trends, and relationships in the data. This can be useful for a wide range of applications, such as market analysis, environmental monitoring, and public health.
Spatial modeling: GIS can be used to create spatial models that simulate real-world phenomena, such as the spread of disease or the impact of natural disasters. These models can help users to better understand complex systems and make more informed decisions.
Data sharing: GIS allows users to share their spatial data with others, which can facilitate collaboration and help to support decision-making.
GIS, or Geographic Information System, is a type of technology that is used to collect, manage, and analyze spatial data.
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C++ Programming
1. How many bits in a byte? multiples of 8 bit
2. How many bytes in a double? __________
3. When assigning a float variable to an int variable, what is lost? __________
4. In the statement x = y; which variable is updated, x or y? _____
5. What include file is needed to make use of vector variables? ________
6. Give an example of a unary operator and a binary operator. _________
7. Write a line of code that declares an int type of variable and initializes it to the value 23.
____________________________
8. A variable declared outside of any function is called a __________ variable.
9. You end a multi-line comment with ______________.
10. What do you call the variable RATE in the following statement:
const double RATE = 0.75; _________________________
11. What is the function performed by the cout object?
____________________
12. You can put several statements on the same line, true or false? _______
13. Write a single statement that outputs two variables x and y to the screen.
_____________________
14. After the statement int result = sizeof(int); what is the value of result? _____________
15. In the statement v = 5+3-2; which is performed first, the minus or the plus? __________
Answers
A variable declared outside of any function is called a global
How to end a multiline comment?You end a multi-line comment with */ (asterisk-slash)
constant variable
The cout object is used for outputting data to the console or standard output stream.
true
cout << x << " " << y;
The value of result is the size in bytes of the integer data type, which depends on the compiler and system architecture being used.
The minus operation is performed first, as it has higher precedence than the plus operation.
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"An email comes from your boss who says his laptop, phone and wallet has been stolen and you need to send some money to an account right away".
what do you think is the type of computer security this type of email come under and what is the name of the specific security attack?
Answers
Answer: Phishing attack
Explanation:
Phishing attacks are extremely common and involve sending mass amounts of fraudulent emails to unsuspecting users, disguised as coming from a reliable source (in this case, his/her boss seems to be sending the message, which seems like a pretty reliable source.)
Also, if his phone and laptop was stolen, he proably would not be able to send an email, and it seems strange to ask one of his workers for money, instead of contatcing the police, the bank, and/or one of his family members.
Which of the following statements are true about how technology has changed work? Select 3 options. Responses Businesses can be more profitable by using communication technology to reduce the costs of travel. Businesses can be more profitable by using communication technology to reduce the costs of travel. With the spread of technology and the Internet, smaller businesses are not able to compete as effectively as before. With the spread of technology and the Internet, smaller businesses are not able to compete as effectively as before. In a gig economy, workers are only hired when they are needed for as long as they are needed. In a gig economy, workers are only hired when they are needed for as long as they are needed. Through the use of the Internet and collaboration tools more workers are able to perform their jobs remotely. Through the use of the Internet and collaboration tools more workers are able to perform their jobs remotely. Technology has not really changed how businesses operate in the last fifty years. Technology has not really changed how businesses operate in the last fifty years.
Answers
The three genuine statements almost how technology has changed work are:
Businesses can be more productive by utilizing communication technology to decrease the costs of travel. This can be genuine since advances like video conferencing and virtual gatherings permit businesses to conduct gatherings, transactions, and collaborations remotely, lessening the require for costly travel courses of action.With the spread of technology and the Web, littler businesses are not able to compete as successfully as some time recently. This explanation is genuine since innovation has empowered bigger companies to use their assets and reach a worldwide advertise more effortlessly, making it challenging for littler businesses to compete on the same scale.Through the utilize of the Web and collaboration devices, more laborers are able to perform their occupations remotely. This explanation is genuine as innovation has encouraged farther work courses of action, allowing employees to work from anyplace with an online association. Collaboration instruments like extend administration computer program and communication stages have made inaccessible work more doable and effective.Technology explained.
Technology alludes to the application of logical information, aptitudes, and devices to form innovations, fathom issues, and move forward proficiency in different spaces of human movement. It includes the improvement, usage, and utilize of gadgets, frameworks, and processes that are outlined to achieve particular assignments or fulfill specific needs.
Technology can be broadly categorized into distinctive sorts, such as data technology, communication technology, therapeutic innovation, mechanical technology, and transportation technology, among others. These categories include different areas, counting computer science, hardware, broadcast communications, building, and biotechnology.
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To select multiple objects at once with the selection tool, hold ___ and click on each object.
Answers
To select multiple objects at once with the selection tool, hold Ctrl (or the Command key on Mac) and click on each object.
Holding the Ctrl (or Command on Mac) key while clicking with the selection tool allows the user to select multiple objects at once.
Using the selection tool in any image editing software, it is possible to select multiple objects at once. To do this, hold the Ctrl (or Command on Mac) key and click on each object you would like to select.
Once all the desired objects are selected, you can apply a single action to all of them at once, such as moving, resizing, or applying a filter. This is a very useful tool for quickly and efficiently editing images with multiple objects that need to be edited in the same way.
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If an image has only 4 colors, how many bits are necessary to represent one pixel’s color in RGB?
Answers
Answer:
Form is the overall structure of the visual elements of a piece. Form can be represented by four categories: representational, objective, realistic, and naturalist.
Explanation:
brainliest
Consider a model of a drone to deliver the orders of the customers within the range of 20 km of the coverage area.
Identified at least 5 factors (inputs) required to experiment with the above mention system model (e.g. speed of the drone).
Write down the levels (range or setting) for each factor mentioned above. (e.g. speed ranges from 10km/h to 30km/h).
On what responses (results) will you analyses the experiment’s success or failure (e.g. drone failed to deliver the package on time), mention at least 3 responses
Answers
Answer:
Explanation:
suna shahani kesa a ..
what data type can be used to represent a number of students in a class
Answers
Answer:
percentage
Explanation:
percentage, character, interger
how to write email abut new home your friend
Answers
Answer:
Start off with a greeting like Dear Sarah. Then you write a friendly body that tells about your home and describe it as much as you can and tell about what your bedroom theme is like and so on. Finally, top it off like a closing like Sincerely, Tessa.
Answer:
you start off by saying
Dear (name), talk about how your house is comforting and things like that... I hope thats what you were asking for.
Please don't answer if you don't know Type the correct answer in the box
. Spell all words correctly. How does SQA differ from SQC? SQA involves activities to evaluate software processes, and SQC involves activities that ensure quality software.
Answers
Software Quality Assurance (SQA) and Software Quality Control (SQC) are two distinct aspects of quality management in software development, each with its own focus and activities.
How different are they?SQA encompasses efforts directed toward assessing and enhancing the procedures of software development at every stage. The main emphasis is on guaranteeing that appropriate techniques, norms, and protocols are adhered to in order to create software of superior quality. SQA encompasses various tasks, including scrutinizing requirements, conducting process audits, and administering quality control procedures.
Conversely, SQC pertains to actions that prioritize assuring the quality of the actual software product. This involves employing methods such as testing, inspections, and reviews in order to detect flaws and guarantee that the software satisfies the stated demands and standards. The goal of SQC is to identify and rectify any shortcomings or irregularities within the software product.
To put it succinctly, SQA focuses on assessing and enhancing the manner in which software is developed, while SQC is primarily focused on verifying the excellence of the resulting software product. SQC and SQA both play a vital role in attaining an optimum level of software quality.
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2.2 code practice question 1
Answers
Answer:
a = float(input("Enter an integer: "))
print(a + 1)
print (a + 2)
print (a + 3)
Explanation:
Summarize the history of artificial intelligence detailing its origin and future state in technology today.
Wrong answer will get reported
Answers
Scaled AI implementation can enhance team performance and strengthen corporate culture. Discover how BCG's AI-driven projects have aided in maximizing value for our clients. Learn About Our AI Products.
How does artificial intelligence work?The replication of human intelligence functions by machines, particularly computer systems, is known as artificial intelligence. Expert systems, language processing, speech recognition, and machine vision are some examples of specific AI applications.
What fundamental principle underpins artificial intelligence?Artificial intelligence is founded on the idea that intellect can be described in a way that makes it simple for a computer to duplicate it and carry out activities of any complexity. Artificial intelligence aims to emulate cognitive processes in humans.
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what is the name of the terminal with limited processing capabilities which is usually connected to a mainframe computer
Answers
Answer: Dum terminals
Explanation: They are called such because they had very little processing power, as they simply process a limited number of display commands. No programs can be run on these devices at all.
How is opera diffrerent from blues,gospel,and country music?
Answers
Answer: Opera has its roots in Europe; the other styles are American
Explanation:
String[][] arr = {{"Hello,", "Hi,", "Hey,"}, {"it's", "it is", "it really is"}, {"nice", "great", "a pleasure"},
{"to", "to get to", "to finally"}, {"meet", "see", "catch up with"},
{"you", "you again", "you all"}};
for (int j = 0; j < arr.length; j++) {
for (int k = 0; k < arr[0].length; k++) {
if (k == 1) { System.out.print(arr[j][k] + " ");
}
}
}
What, if anything, is printed when the code segment is executed?
Answers
Answer:
Explanation:
The code that will be printed would be the following...
Hi, it is great to get to see you again
This is mainly due to the argument (k==1), this argument is basically stating that it will run the code to print out the value of second element in each array within the arr array. Therefore, it printed out the second element within each sub array to get the above sentence.
When the code segment is executed, the output is "Hi, it is great to get to see you again "
In the code segment, we have the following loop statements
for (int j = 0; j < arr.length; j++) {for (int k = 0; k < arr[0].length; k++) {The first loop iterates through all elements in the array
The second loop also iterates through all the elements of the array.
However, the if statement ensures that only the elements in index 1 are printed, followed by a space
The elements at index 1 are:
"Hi," "it" "is" "great" "to" "get" "to" "see" "you" "again"
Hence, the output of the code segments is "Hi, it is great to get to see you again "
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You have an Azure subscription that contains the following fully peered virtual networks: VNet1, located in the West US region. 5 virtual machines are connected to VNet1. VNet2, located in the West US region. 7 virtual machines are connected to VNet2. VNet3, located in the East US region, 10 virtual machines are connected to VNet3. VNet4, located in the East US region, 4 virtual machines are connected to VNet4. You plan to protect all of the connected virtual machines by using Azure Bastion. What is the minimum number of Azure Bastion hosts that you must deploy? Select only one answer. 1 2 3 4
Answers
Answer:
To protect all the connected virtual machines with Azure Bastion, the minimum number of Azure Bastion hosts that you must deploy is 2.
Explanation:
Azure Bastion provides secure and seamless RDP and SSH access to virtual machines directly through the Azure portal, eliminating the need to expose them to the public internet. Each Azure Bastion host provides connectivity to virtual machines within a single virtual network.
In this scenario, you have four virtual networks (VNet1, VNet2, VNet3, and VNet4) located in two different regions (West US and East US). Since VNet1 and VNet2 are in the same region (West US), you can deploy one Azure Bastion host in that region to provide access to the 12 virtual machines (5 in VNet1 and 7 in VNet2).
For VNet3 and VNet4, which are located in the East US region, you would need another Azure Bastion host to provide access to the 14 virtual machines (10 in VNet3 and 4 in VNet4).
Therefore, the minimum number of Azure Bastion hosts required is 2, with one host deployed in the West US region and another host deployed in the East US region.
Which of the following are properties of dictionaries? (check all that apply) nestable accessed by key iterable ordered
Answers
Answer:
Both are mutable.
Both are dynamic. They can grow and shrink as needed.
Both can be nested. A list can contain another list. A dictionary can contain another dictionary. A dictionary can also contain a list, and vice versa
Explanation:
hope it's help
In computers, language dictionaries are the unordered collections of the data set. Dictionaries can be nestable. Thus, option a is correct.
What is nestable?Nestable is the ability to get nested that is the fitting of many objects together at a place. The items like the files, documents, folders, etc. can be placed and stacked within each other.
The different or the same type of computing items can be embedded and arranged in a hierarchical form. The other words do not fit with the computing dictionaries.
Therefore, option a. nestable is the correct option.
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