In Aura components, there are two types of events, as explained below:
<ul>
<li>Component- This type of event is fired from an instance of a component and can be handled only by the component that fired it or a component in the containment hierarchy.
</li>
<li>Application- This type of event is fired from an instance of a component and can be handled by any component which provides a handler to listen to it.
</li>
</ul>
In Lightning Web Components, there are events with the same behaviour as component and application events but with a different name and way of implementation, as explained below:
<ul>
<li>Dispatch Event- This is similar to component events. It requires you to create an event using CustomEvent() and fire using EventTarget.dispatchEvent().
</li>
<li>Lightning Message Service or PubSub Model- is similar to application events where the components are not in the same DOM tree.
</li>
</ul>

In Aura components, there are two types of events, as explained below:

* **Component-** This type of event is fired from an instance of a component and can be handled only by the component that fired it or a component in the containment hierarchy.
    
* **Application-** This type of event is fired from an instance of a component and can be handled by any component which provides a handler to listen to it.
    

In Lightning Web Components, there are events with the same behaviour as component and application events but with a different name and way of implementation, as explained below:

* **Dispatch Event-** This is similar to component events. It requires you to create an event using CustomEvent() and fire using EventTarget.dispatchEvent().
    
* **Lightning Message Service or PubSub Model-** is similar to application events where the components are not in the same DOM tree.

Types of events in Aura components / Lightning Web Components