'Open with' icon, is this symbol actually used for it? [closed]

1. What are icons used for?
2. What is full meaning of icon?
3. What is an example of an icon?
4. What are the types of icons?

What are icons used for?

Why are icons used? As graphic symbols, computer icons help users quickly and easily identify what they need or want. The use of icons also provides a more appealing visual representation, which makes them more enjoyable to use than traditional text-based links.

What is full meaning of icon?

: a person or thing widely admired especially for having great influence or significance in a particular sphere. a civil rights icon. an actor and fashion icon.

What is an example of an icon?

If I describe somebody as an icon, I am saying that they are important as a symbol of something. For example, Picasso and Marilyn Monroe were icons of modernism and mid-20th-century Hollywood respectively.

What are the types of icons?

There are three types of icons: “universal,” “conflicting” and unique icons. Let's focus on each type and its impact on the user experience.