Answer:
Option B is the correct answer for the above question.
Explanation:
The sort form of the Database management system is DBMS. It is a system that is used to hold the records or data and manage them with the edit, update and insert operation. If a user wants to save the data in anywhere then he can store it into DBMS and can do any operation which is listed below--
- He can add the data
- He can edit the data
- He can modify the data
The above question asked about the tools which are the interface and use to add edit and update the data. Then the answer is DBMS which is defined above which is stated from option B. Hence B is the correct answer for the above question. while the other is not because--
- Option A states about RMSB which is not the correct option.
- Option C states about "Scale set" which is also not the correct option.
- Option C states about HCI which is also not the correct option.
Answer:
<h2>
C++ Code:</h2>
#include <iostream> //header file for input output functions like cout cin
#include <sstream> // reads from string as a stream
#include <string>
// header file for strings
using namespace std; // used for computer to detect endl cout, cin
int main() { //start of the main function of the program
string userItem; // declare string type variable
ostringstream itemsOSS; // output string stream
cout << "Enter items (type Exit to quit):" << endl;
// prompts user to enter items and type Exit to quit
cin >> userItem; //reads input userItems
while (userItem != "Exit") { //loop that runs untill userItem gets equal to Exit
itemsOSS << userItem << " ";
// inserts userItem into the output string stream itemsOSS
cin >> userItem;
} //reads items stored in userItem variable
cout << itemsOSS.str() << endl;} // prints current contents of the itemsOSS.
<h2>
Explanation:</h2>
I will explain the code line by line.
- The first line includes a header file iostream which is used for input and output functions such as cin, cout etc.
- The next line includes sstream header file to read from a string as a stream. String streams are streams containing strings. Strings are treated like streams and stream operations are used on these strings.
- The next line includes string header file in order to use strings in the program.
- Next line namespace is used for the computer to identify objects like endl, cin, cout.
- This lines starts the main function and enters the body of main function.
- A string type variable userItem is declared.
- ostringstream type variable itemsOSS is declared. ostringstream class works on strings.
- This line prompts the user to enter the items and type Exit word to quit. endl is used to insert new line.
- This line read input from variable userItem which is inserted by the user.
- This statement starts a loop which will continue to execute until the user types Exit.
- In the body of while loop, this line shows that the items entered by the user in userItem will be inserted into the output string stream itemsOSS. Every userItem is followed by a space. << this is insertion operator. This retrieves items from the input sequence and inserts them into the itemsOSS, until Exit is typed.
- Next line reads items stored in userItem variable.
- str() returns a copy of the string which is manipulated by the current stream string and it outputs the contents of the itemsOSS stream.
<h2>
Output:</h2>
Enter items (type Exit to quit):
red purple yellow Exit
red purple yellow
Answer:
The answer is "Option B"
Explanation:
The ability to learn and use basic computer hardware and software understanding to solve problems and to access information is known as computer fluency. and other options are not correct, that can be defined as follows:
- In option A, computer knowledge is a basic general awareness, that helps the user to use the computer more fluently, that's why it is not correct.
- In option C, It is an internal feature of the computer, that helps to transfer data, that's why it is not correct.
- In option D, computer information is also known as data that is stored in the computer, that's why it is not correct.
Answer:
a. labels
Explanation:
a. labels b. graphs c. numbers d. formulas
It is the labels, which is the title of each column. For one column we can have the names, for another column, we can have a label grade. and for the third column, we can have the label scores. And the others are the graphs, formulas and the numbers, which are not an option.
