In web design terminology, the term slider is used to designate a slideshow that is integrated into a web page. It can also be called carousel.
There are many WordPress plugins that allow you to create sliders that you can add to your homepage, or in a post, or anywhere else on your site.
Sliders can be used on all kinds of websites, however they are most often used on corporate websites or to present professional portfolios
A slider can run automatically by displaying the slides at a predefined time interval. Sliders can also react to user interaction such as clicking or swiping to display the previous or next slide.
Before using a slider on a WordPress site, there are a number of things the user should consider.
First, sliders typically load images and slide content, which can slow down your site.
Another issue that can arise when using a slider in WordPress is adaptability to mobile devices. If your WordPress site uses a responsive theme, then the use of a non-responsive slider will break the display of the site on different devices with variable screen sizes.
A responsive slider plugin is able to adjust the size of the slideshow as well as the different contents (images, texts, videos) to fit any screen size.
There was a time when sliders were very popular. However, their effectiveness is now often questioned. Indeed, studies show that they are often not viewed in their entirety.
To learn more about sliders, read this article.