Answer:
There are different kinds of operating systems: such as Windows, Linux and Mac OS
There are also different versions of these operating systems, e.g. Windows 7, 8 and 10
Operating systems can be used with different user interfaces (UI): text user interfaces (TUI) and graphical user interfaces (GUI) as examples
Graphical user interfaces have many similarities in different operating systems: such as the start menu, desktop etc.
When you can recognize the typical parts of each operating system’s user interface, you will mostly be able to use both Windows and Linux as well as e.g. Mac OS.
THE ROLE OF OPERATING SYSTEM IN THE COMPUTER
An operating system (OS) is a set of programs which ensures the interoperability of the hardware and software in your computer. The operating system enables, among other things,
the identification and activation of devices connected to the computer,
the installation and use of programs, and
the handling of files.
Answer:
#include <iostream>
#include <array>
using namespace std;
bool isPalindrome(string str)
{
int length = str.length();
for (int i = 0; i < length / 2; i++)
if (toupper(str[i]) != toupper(str[length - 1 - i]))
return false;
return true;
}
int main()
{
array<string, 6> tests = { "madam", "abba", "22", "67876", "444244", "trymEuemYRT" };
for (auto test : tests) {
cout << test << " is " << (isPalindrome(test) ? "" : "NOT ") << "a palindrome.\n";
}
}
Explanation:
The toupper() addition forces characters to uppercase, thereby making the comparison case insensitive.
Answer:
To reposition the legend to the left-hand side of a chart, click the chart elements button, point to legend, click the right arrow icon, and click left. the
Explanation:
Chart Element button is used to add and remove chart elements. It is located in the Charts Layout group on the Chart tools design tab
Answer:
<em>SQL Query</em>
///////////////////////////////////////////////////////////////////////////////////////////////////
select Genre_Name, Number_Purchased from Genre
INNER JOIN Tracks on Genre.Genre_Name = Tracks.Genre_Name
WHERE Number_Purchased >= 10 AND Tracks.price >= 1
ORDER BY Number_Purchased ASC;
Explanation:
First off, I selected the required columns from <em>Genre</em> Table.
Then I inner joined <em>Genre</em> table with <em>Tracks</em> table, to get the <em>price</em> of tracks of the corresponding Genres.
Then the required Where conditions are written, which includes one from the <em>Tracks</em> table.
Finally, the Order by statement is written by <em>Number_Purchased</em> column in ascending (ASC) order.
