Adware is a type of software that is designed to display advertisements on a computer or mobile device. It is often bundled with free software or apps, and can be installed without the user’s knowledge or consent.

Adware can take various forms, including:

* Pop-up ads: These are the most common type of adware, and can appear as windows or tabs on your browser. They can be triggered by visiting a particular website, clicking on a link, or closing a browser tab.

* Banners: These are graphical ads that appear on a website or app, often at the top or bottom of the page.

* In-text ads: These are ads that appear within the text of a website or app, often in the form of highlighted words or phrases.

* Native ads: These are ads that are designed to blend in with the content of a website or app, and can appear as sponsored content or product recommendations.

Adware can be annoying and disruptive, and can slow down your browser or device. It can also collect personal information, such as browsing history and search queries, and use it to display targeted ads.