what is operating system?
Answer:
operating system (os)is translator between the operator (user)and the computer
Select the correct answer.
Which of these statements is true of dynamic design diagrams?
A.
They demonstrate objects.
B.
They demonstrate relationships.
C.
They demonstrate the behavior of system aspects.
D.
They include structure diagrams.
Answer:
They demonstrate the behavior of system aspects.
The statement true regarding the dynamic design diagram is that it demonstrates the behavior change in the system. Thus, option C is correct.
What is a dynamic design diagrams?A dynamic design diagram is given as the model that has been expressing the development of the operations, actions, and the behavior of the system over time.
The dynamic design diagram is thereby the demonstration of the behavior of system aspects. Thus, option C is correct.
Learn more about dynamic design, here:
https://brainly.com/question/14956129
#SPJ2
Calculate the number of telephone
towers required to cover the entire
Country asurning the entire country is
interconnected to provide network
coverage
Answer:
yho
Explanation:
hayi no ntwana.... lala boy
Each worksheet is the equivalent of a full spreadsheet and has the potential for up to 1,048,576 x 16,384 cells, arranged in rows and columns. The rows are numbered 1. 2.
3 and onwards, up to a maximum of 1,048,576. The columns are lettered A to Z AA to ZZ, and then AAA tO XFD. This gives a maximum of 16,384 columns. True or False?
Answer:
True
explanation:The last column on the worksheet is lettered XFD.
Prepare algorithm and draw a corresponding flowchart to compute the mean value of all odd numbers between 1 and 100 inclusive.
Answer:
it has to be 35 it's definitely 35
Explain means of soil preparations adopted in the field when the crop is not yet sown?
Answer:
Answer to the following question is as follows;
Explanation:
To create and preserve the soil, add organic matter every year during soil preparation. Make sure to turn all of the plant material under the soil. If you're going to add organic compounds before harvesting a fall garden, make sure it's well-rotted fertiliser. Rake the dirt clean and level prior to actually planting.
which is better microprocessor or vacuum tube explain
Answer:
explain the role importance of communication in economic development of Nepal?
The development of the modern computer system has been evolutionary. Discuss this phenomenon and further discuss how current trends in computing would impact future computer systems development
Answer:
The modern computer system has been evolutionary. Modern computers have allowed for us to complete hard tasks rather easily. With modern computers, we are able to calculate advanced equations with the click of a button. Trends in computing like RTX can rapidly improve performance, rendering, and tons of other graphical heavy actions. In September of 2018, we got the first RTX card, now in 2021, RTX has become exponentially better than what it was in 2018. With the modern computers comes quantum computers. Quantum computing is estimated to be 100 million times faster than any modern computer. IBM, the company to make the first computer stated that we are in the decade of quantum computing. And who knows? Maybe quantum computing will come sooner rather than later.
Explanation:
You probably should modify this a little so you don't get in trouble. I researched each topic I put into this for about an hour so I hope this is what you need. If it isn't, please don't hesitate to tell me what I didn't add or what went wrong.
Have a good day :)
What are the application of computer? explain.
Keely has an automation tool in place that runs a number of different processes for her and has for the last two years. All of a sudden it stops working and generates an error message that the account has been locked. Which of the following is the best possible reason why?
a. The password has expired.
b. The IP address of the server the process is typically accessing has changed. *
c. The ACL with the allowed list of users has changed.
d. Someone has tried to hack into the system using that account.
Answer:
b. The IP address of the server the process is typically accessing has changed
Explanation:
IP address stands for Internet Protocol address. It refers to a numerical value which is assigned to a every device which is connected to a computer network using the internet protocol for any communication.
Every device is allotted a unique IP address number.
In the context, Keely who works on an automation tool suddenly gets an error message that the account has been locked. This is mainly due to the changed in the IP address of the server that accesses the process.
The account gets closed or clocked whenever the IP address of the server changes.
Therefore, the correct option is (b).
Viết chương trình nhập vào họ tên của bạn rồi in nội dung chuỗi đó lên màn hình.Ví dụ:Nếu họ tên nhập vào là: NGUYEN BINH MINH thì kết quả màn hình như sau
Describe in your own words the two main data integrity constraints that we learnt in our discussion of databases. Provide your own examples of their use.
Answer:
Domain integrity constraint and Entity integrity constraint
Explanation:
Data integrity constraints protect the quality of data by ensuring data doesn't lose its integrity, validity, or consistency when there is update to data. Data integrity constraints are rules applied to table columns in DBMS systems to prevent any unintentional damage to data. There are four types of data integrity constraints: domain integrity constraint, entity integrity constraint, referential integrity constraint, and key constraint.
Domain integrity constraint applies rules to protect against the values or attributes in the table column.
Entity integrity constraint applies rules to protect the uniqueness of rows in the table.
program 2. write a VB.NET program to solve the linear equation of the form Ax+B=C, i.e x=(C=B)/A (Eg:2x+3=7, where B and C are consonants, A is the coefficient of x)
Answer:
Module Program
Sub Main()
Dim A, B, C, x As Double
A = 2.0
B = 3.0
C = 7.0
x = (C - B) / A
Console.WriteLine($"Solution for {A}x + {B} = {C} is x = {x}")
Console.ReadKey()
End Sub
End Module
Explanation:
For A=0, the program wouldn't work, because then any x would be a solution.
In MS_Excel , assume you have data base of employees with their ages,How you could checked the employee is continuous in work or not depending on his age? A) By using AND function. B) By using IF function. C) By using OR function. D) By using IF and AND functions
Answer:
C) By using OR function
Explanation:
Given
Employees database
Required
Check for employees that are continuous in work or not depending on age
The solution to this question lies in the question itself.
From the question, we are to check for
....employees that are continuous in work or not depending on age
Notice that the question does not imply the usage of an if-function but, the usage of an or function as indicated by the text in bold.
So.
If an employee is continuous in work, the function will return true
If an employee does not depend on age limit, the function will return true
The function will return false, if both conditions are not true
Which port on the back of a PC’s system unit is used for network connection?
Answer:
I think the answer is USB Ports
A year in the modern Gregorian Calendar consists of 365 days. In reality, the earth takes longer to rotate around the sun. To account for the difference in time, every 4 years, a leap year takes place. A leap year is when a year has 366 days: An extra day, February 29th. The requirements for a given year to be a leap year are:
1) If the year is evenly divisible by 4, go to step 2. Otherwise, go to step 5.
2) If the year is evenly divisible by 100, go to step 3. Otherwise, go to step 4.
3) If the year is evenly divisible by 400, go to step 4. Otherwise, go to step 5.
4) The year is a leap year (it has 366 days).
5) The year is not a leap year (it has 365 days).
Some example leap years are 1600, 1712, and 2016.
Write a program that takes in a year and determines whether that year is a leap year.
Answer:
The program in Python is as follows:
year = int(input("Year: "))
print(year,end=" ")
if (year % 4) == 0:
if (year % 100) == 0:
if (year % 400) == 0:
print("is a leap year")
else:
print("is not a leap year")
else:
print("is a leap year")
else:
print("is not a leap year")
Explanation:
This gets input for year
year = int(input("Year: "))
This prints the year, input by the user
print(year,end=" ")
Check if year is divisible by 4 --- step 1
if (year % 4) == 0:
If step 1 is true, check if year is divisible by 100 -- step 2
if (year % 100) == 0:
If step 2 is true, check if year is divisible by 400 -- step 3
if (year % 400) == 0:
If yes, print leap year --- step 4
print("is a leap year")
else:
If otherwise, print not leap year --- step 5
print("is not a leap year")
If step 3 is not true, print leap year
else:
print("is a leap year")
If step 1 is not true, print not leap year
else:
print("is not a leap year")
Leo is planning the new backup strategy for a subsidiary his company is purchasing that does not currently have a backup strategy in place. He decides that a full backup should be run once per week. Once per day, everything that has changed since the last full backup will be archived. Once per hour everything that has changed since the last backup of any type will be backed up. Which of the following describes the backups that will be run every hour?
a. Differential
b. Variable
c. Incremental
d. Flexible
Answer:
C. Incremental backup
Explanation:
An incremental backup is a type of backup where the succeeding copies of the data is made up of only those positions that have changed since the previous or prior copies were made. Such backups are desired since they limit the usage of space for storage and these types of back ups are faster to do that the differential backup.
When we bring this explanation to this question, we can easily see that the backup that is being carried out is done on everything that has changed since the last backup (previous backup). Therefore this is an incremental backup.
a. Daily Life Magazine wants an analysis of the demographic characteristics of its readers. The marketing department has collected reader survey records containing the age, gender, marital status, and annual income of readers. Design an application that allows a user to enter reader data and, when data entry is complete, produces a count of readers by age groups as follows: younger than 20, 20-29, 30-39, 40-49, and 50 and older. b. Modify the Daily Life Magazine program so that it produces a count of readers by gender within age group-that is, under-20 females, under-20 males, and so on. c. Modify the Daily Life Magazine program so that it produces a count of readers by income groups as follows: under $30,000, $30,000-$49,999, $50,000-$69,999, and $70,000 and up.
Answer:
uh
Explanation:
The enhanced for loop _____ Group of answer choices reduces the number of iterations necessary to visit all elements of an array prevents incorrectly accessing elements outside of an array's range can be used to replace any regular for loop while yielding less code creates a copy of an existing array and iterates through the copy's elements
Answer:
prevents incorrectly accessing elements outside of an array's range.
Explanation:
The enhanced for loop prevents incorrectly accessing elements outside of an array's range. This type of loop is also called a For Each Loop. This is because this loop automatically loops through each element in the given array and grabs that element, then it performs whatever instructions are inside of the loop's body to that element before moving on to the next available element. This way there is no numbered indexing that needs to be provided and therefore prevents the loop from accidentally trying to access an index that does not exist in the array.
1. You purchase a new desktop computer that does not have wireless capability, and then you decide thar you want to use a wireless connection to the internet. Give two solutions to upgrade your system to wireless.
2. You are replacing a processor on an older motherboard and see that the board has the LGA1155 socket. You have three processors on hand: Intel Core i3-2100, Intel Core i5-8400, and Intel Core i5-6500. Which of these three processors will most likely fit the board? Why?a. 4.b. 5.c. 6.d. 7.
Answer: 1.) You can use a USB WiFi adapter, install a dedicated PCIe WiFi card, or upgrade to a new motherboard with built-in WiFi. (That's three solutions but just want to give you flexibility with your problem.)
Answer: 2.) None of the processors would fit because they all have different series sockets. (The i5 processors have LGA1151 sockets and the i3 has an LGA1156 socket.)
Explanation: 1.) Usb WiFi adapter, dedicated PCIe WiFi card, OR a new motherboard with built-in WiFi
2.) None of the processors work
Many variables of the same Type, having the same Name, grouped together and referenced via an integer value constitute: a. a class. b. an array. c. a struct. d. a pointer. e. none of these.
Answer:
b. an array.
Explanation:
An array can be defined as a set of memory locations (data structure) that comprises of a group of elements with each memory location sharing the same name. Therefore, the elements contained in array are all of the same data type e.g strings or integers.
Basically, in computer programming, arrays are typically used by software developers to organize data, in order to search or sort them. Also, the elements of an array are always stored in contiguous memory locations.
Basically, it's a data structure which comprises a fixed-size collection of variables each typically holding a piece of data and belonging to the same data type such as strings or integers.
In Computer programming, when more than one variable of the same type, having the same name, are grouped together and referenced via an integer value, it constitute an array.
This ultimately implies that, when a programmer wishes to store a group of related data (elements) of the same type, he or she should use an array.
Which support function under Tech Mahindra is governing data privacy and protection related requirements
Answer:
Privacy Policy
Explanation:
PRIVACY POLICY is the support function under Tech Mahindra that is governing data privacy and protection-related requirements.
Given that support functions are functions which assist and in a way contribute to the company goal.
Other support functions are human resources, training and development, salaries, IT, auditing, marketing, legal, accounting/credit control, and communications.
The above statement is based on the fact that the Privacy Policy clarifies all the data protection rights, such as the right to object to some of the production processes that TechM may carry out.
Difference between array processor and vector processor
Answer:
An array is used for the storaging the paticular given size element that is either fixed or given by the user. However an vector is also used for storing purpose but the size of the table is assign automatically during the running time of the program or we say dynamic size assign to table.
Answer:
An array is made up of indexed collections of information called indices, the plural form of the word "index." Though an array can, in rare cases, have only one index collection, a vector is technically indicative of an array with at least two indices. Vectors are sometimes referred to as "blocks" of computer data.
Explanation:
Array stores a fixed-size sequential collection of elements of the same type and it is index based. Vector is dynamic in nature so, size increases with insertion of elements. As array is fixed size, once initialized can't be resized. Vector occupies more memory.
Oops, we made a mistake: we created a key "short" and gave it the value "tall", but we wanted to give it the value "long" instead. Write the line of code that will change the value associated with the key "short" to "long".
Write a program that first gets a list of integers from input. The input begins with an integer indicating the number of integers that follow. Then, get the last value from the input, which indicates a threshold. Output all integers less than or equal to that last threshold value. Assume that the list will always contain fewer than 20 integers. Ex: If the input is: 5 50 60 140 200 75 100
Answer:
Explanation:
The following is coded in Java. It asks the user for the number of inputs and then creates a loop to read all of the inputs and adds them to an ArrayList. Then it saves the last value in the array as the threshold. Finally, it loops through the array printing only the values less than or equal to the threshold. The program has been tested and the output can be seen in the image below.
import java.util.ArrayList;
import java.util.Scanner;
class Brainly {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
ArrayList<Integer> myList = new ArrayList<>();
System.out.println("How many inputs will you add? ");
int inputs = in.nextInt();
System.out.println("Enter inputs: ");
for (int i = 0; i< inputs; i++) {
int num = in.nextInt();
myList.add(num);
}
int threshold = myList.get(myList.size()-1);
System.out.println("Inputs Less than or Equal to Threshold: ");
for (int x: myList) {
if (x <= threshold) {
System.out.println(x);
}
}
}
}
A technician is setting up a VM for use in testing software deployments. The VM is offline, but the hypervisor is not. Which of the following settings should the technician change to resolve this issue
Answer:
The answer might be C.
Explanation:
Virtualization software (hyper-v, vm ware, virtual box) has a power button to power on the virtual machine, so in the real world you would press the power button. But the virtual CPU is the closet thing to a power button.
Explain how you would find a book on a given subject in the library.
Answer:
In case I am looking for a specific book in a library, the way in which I would try to find it would be through consulting the library guide, or through inspection of the different books of the specific sector with which the book I'm looking for is listed, or by asking the library staff to help me with my search.
Define that function in a program whose inputs are the car's miles/gallon and the gas dollars/gallon (both floats). Output the gas cost for 10 miles, 50 miles, and 400 miles, by calling your DrivingCost function three times.
Ex: If the input is 20.0 3.1599, the output is:
Write a function DrivingCost with parameters drivenMiles, milesPerGallon, and dollarsPerGallon, that returns the dollar cost to drive those miles. All items are of type float.
Ex: If the function is called with 50 20.0 3.1599, the function returns 7.89975.
Answer:
Explanation:
The following is written in Java. The first DrivingCost function requested in the question cannot be made and will not work because the cost cannot be calculated without the miles driven being input as a seperate variable. The second DrivingCost function with all three variables was created and tested using the example in the question. The test and output can be seen in the attached image below highlighted in red.
public static float DrivingCost(float drivenMiles, float milesPerGallon, float dollarsPerGallon) {
float gallonsUsed = drivenMiles / milesPerGallon;
float cost = dollarsPerGallon * gallonsUsed;
return cost;
}
List the components of a typical operating system and summarize the role of each in a single phrase.
Answer:
The answer is below
Explanation:
There are several components of operating systems, this may be based on the specific types of Operating systems. However, here are some of the major components.
1. Kernel: it delivers the primary level of control on all the computer peripherals.
2. Process Execution: it serves as a connection between the hardware and application program
3. Interrupt: it provides a dependable technique for the OS to transmit & respond to their surroundings.
4. Memory Management: it regulates main memory and then moves processes between disk & main memory during implementation.
5. Multitasking: it interprets the activities of many independent computer programs on a similar computer system.
6. Networking: it defines the interaction of processor through communication lines
7. Security: it protects the activities of other processes going in the system
8. User Interface: it provides permission for a computer operator to get the information.
8. Lael wants a quick way to look up students by their Student ID.
In cell Q3, nest the existing VLOOKUP function in an IFERROR function. If the VLOOKUP function returns an error result, the text Invalid Student ID should display.
Answer:
IFERROR(VLOOKUP(Q2,A2:N31,2,FALSE),"Invalid Student ID")
Explanation:
The VLOOKUP function is expresses using the syntax :
=VLOOKUP(value, table array, col_index, range lookup value)
Using the IFERROR function with the VLOOKUP :
IFERROR(VLOOKUP(Q2,A2:N31,2,FALSE),"Invalid Student ID")
The VLOOKUP function here is nested with an IFERROR function is used to avoid our calculation or output resulting or showing an error and instead of throwing an error, output a statement which is defined by the user.
Here, the IFERROR function here takes the VLOOKUP function defined as its first argument, the second argument will be the output if the VLOOKUP function fails to find a match
