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asambeis [7]
3 years ago
5

Project light with a system of lenses used for projecting slides or film into a screen.

Computers and Technology
1 answer:
Travka [436]3 years ago
7 0

Answer:

Optical system. An overhead projector works on the same principle as a slide projector, in which a focusing lens projects light from an illuminated slide onto a projection screen where a real image is formed.

Explanation:

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Although you can use a dialog box to indent paragraphs, word provides a quicker way through the ____.
pishuonlain [190]
B. Quick access toolbar

3 0
3 years ago
Why is Touchpad used in the laptop computer​
Ber [7]

Answer:

in controlling the mouse or cursor

Explanation:

as is it known tha a cursor is a poniting device. and the only way to control it without a mouse is the touchpad

3 0
3 years ago
Write a class named Add that has the following data members, constructor, and methods:
taurus [48]

Answer:

A class is like a blueprint of object.

Explanation:

A class defines the kinds of data and the functionality their objects will have.

A class enables you to create your own custom types by grouping together variables of other types, methods and events.

In C#, we can create a class  using the class keyword.

Here's a sample program:

using System;

namespace ConsoleApplication

{

   public class Test

   {

       public static void Main()

       {

           Add a1 = new Add(70, 50);

           a1.AddNumbers();                    

           Console.ReadLine();

       }      

   }

     class Add

   {

       private int row;

       private int column;

       public Add(int r, int c)

       {

           row = r;

           column = c;

       }

       public void AddNumbers()

       {

           Console.WriteLine(row+column);

       }

   }

}

output: 120

Explanation of the program:

I have created a class named Add. Within a class, row and column are two fields and AddNumbers() is a method. We also have constructor to initialize row and column.

In main method, If I need to invoke members of the class, I must create  an instance of the class. We can create any number of instances using the single class.IN our program, a1 is the reference variable using which we can invoke members of the class. I invoked function in the class and passed arguments to the constructor while creating an instance.

Those values are assigned to method variables and it operated the addition. Thus the output is 120.

7 0
3 years ago
How to make stuff bigger and smaller in photoshop?
Oksana_A [137]
It depends on what software or application you are using.
7 0
4 years ago
5.6 Look carefully at how messages and mailboxes are represented in the email system that you use. Model the object classes that
Annette [7]

Answer:

See explaination for the details of the answer.

Explanation:

A class is a structured diagram that describes the structure of the system.

It consists of class name, attributes, methods and responsibilities.

A mailbox and an email message has some certain attributes such as, compose, reply, draft, inbox, etc.

See attachment for the Model object classes that might be used in the system implementation to represent a mailbox and an email message.

5 0
3 years ago
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