Hardware is the answer.
Software is not really tangible
Operating system is software
Input is not truly 'physical'
        
             
        
        
        
To achieved a document that is evenly spaced so that they look neat and readable, the option in a word processing program will help to achieve this is the home setting. In the home of the word, you can see there various tabs, one of the tabs is the paragraph. You will click symbol of "justify". And there is simple code to do that, just press the "Ctrl" and "J" on your keyboard at the same time.
        
             
        
        
        
Answer:
The program in C++ is as follows:
#include <iostream>
#include <vector>
using namespace std;
int main(){
 vector<int> nums;
 int num;
 cin>>num;
 while(num != -1){
  nums.push_back(num);
  cin>>num;	}  
 for (auto i = nums.begin(); i != nums.end(); ++i){
     cout << *i <<endl;	}
 return 0;
}
Explanation:
This declares the vector
 vector<int> nums;
This declares an integer variable for each input
 int num;
This gets the first input
 cin>>num;
This loop is repeated until user enters -1
 while(num != -1){
Saves user input into the vector
  nums.push_back(num);
Get another input from the user
  cin>>num;	}
The following iteration print the vector elements
<em> for (auto i = nums.begin(); i != nums.end(); ++i){
</em>
<em>     cout << *i <<endl;	}
</em>
 
        
             
        
        
        
In this exercise we have to use the knowledge in computational language in python  to write a code with circles and squares.
<h3>how to draw geometric figures in python?</h3>
<em>inputs = 100</em>
<em>radius</em>
<em>    draw_circle(radius);</em>
<em>    pendown()</em>
<em>    begin_fill()</em>
<em>    circle(radius)</em>
<em>    end_fill()</em>
<em>    penup()</em>
<em>left(90)</em>
<em>forward(radius*2)</em>
<em>right(90)  </em>
<em>penup()</em>
<em>setposition(0,-200)</em>
<em>color("gray")</em>
<em>bottom_radius = int(input("What should the radius of the bottom circle be?: "))</em>
<em>draw_circle(bottom_radius)</em>
<em>draw_circle(bottom_radius)</em>
See more about python at brainly.com/question/18502436