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Alex777 [14]
3 years ago
5

What is the main function of an operating system​

Computers and Technology
1 answer:
alina1380 [7]3 years ago
4 0

Here are the main functions of an operating system:

1) Manage the resources of the device

The operating system controls how much of each resource is distributed, and it controls things like the processing unit and memory.

2) Establish a interface for the user of the device

The operating system must classify what the classes of the script/code have to do and what they implement.

3) Service application software

The operating system must service each application that is downloaded onto the device. It must balance it's use of storage between apps.

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The director of HR realizes that the KSAs currently used for hiring entry-level engineers are outdated. In order to establish wh
Vaselesa [24]

Answer:

Job analysis

Explanation:

The HR should preferably use job analysis.

6 0
3 years ago
In 1-2 sentences, describe how to use the thesaurus in the Word Processor you have used.
jasenka [17]
Thesaurus is a tool use to find the synonym of the of a word.
Here's the way to use the thesaurus in the word processor.
=> highlight the word, then right-click, Navigate to synonyms and the words will  display.
3 0
3 years ago
Read 2 more answers
Write the definition of a function divide that takes four arguments and returns no value . The first two arguments are of type i
Nastasia [14]

Answer:

#include <iostream>

using namespace std;

void divide(int numerator, int denominator, int *quotient, int *remainder)

{

*quotient = (int)(numerator / denominator);

*remainder = numerator % denominator;

}

int main()

{

int num = 42, den = 5, quotient=0, remainder=0;

divide(num, den, &quotient, &remainder);

 

return 0;

}

Explanation:

The exercise is for "Call by pointers". This technique is particularly useful when a variable needs to be changed by a function. In our case, the quotient and the remainder. The '&' is passing by address. Since the function is calling a pointer. We need to pass an address. This way, the function will alter the value at the address.

To sum up, in case we hadn't used pointers here, the quotient and remainder that we set to '0' would have remained zero because the function would've made copies of them, altered the copies and then DELETED the copies. When we pass by pointer, the computer goes inside the memory and changes it at the address. No new copies are made. And the value of the variable is updated.

Thanks! :)

8 0
3 years ago
Circuitry can be either basic or ___________.
Sonja [21]
I think it would be A. Ohm's law.
hope this helps.
6 0
3 years ago
Read 2 more answers
Let's now use our new calculator functions to do some calculations!
Sophie [7]

Answer:

Ans1.

double calc_a;

calc_a=Math.pow(3.0,2.0)+Math.sqrt(9);

Ans2.

double calc_b;

calc_b=((12.0/3.0)-(2.0*4.0));

Ans 3.

double calc_c;

calc_c=(Math.sqrt(16.0)*(7.0+9.0));

Ans 4.

double calc_d;

calc_d=Math.pow(7.0,2.0)/Math.sqrt(49.0);

Explanation:

The expressions are done with Java in answer above.

6 0
3 years ago
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