The html tag enables web designers to link html documents to each other.

anchor tag (<a>)

Explanation:

The anchor HTML tag enables hyperlinking of documents in the web. The generic format is as follows:

<a href='www.abc.com'> Text </a>

In this segment, Text is rendered as underlined on the browser, and when the user clicks on Text, he is taken to the page www.abc.com which is defined using href attribute. The same anchor tag can be used for hyperlinked images as well.

answer; the correct answer is (operating system);

1. entrepreneur.com

2. wikipedia