Wipe, in a computing context, means  to render all data on a hard drive unreadable. The term is often used in reference to making data stored on a computer, smartphone or tablet inaccessible before disposing of the device.
A semantic HTML tag is one that defines a meaning to the enclosed content that a computer can be programmed to understand. In most cases, browsers create some visual difference to content in semantic tags, for example, content in the CODE element is usually displayed in a monospaced font. But this is not a requirement. Many people feel that semantic HTML elements are a waste of bandwidth.
HTML is an acronym for Hyper Text Markup Language. Files that contain the .html file extension store web pages that have been created using the Hyper Text Markup Language. HTML files are created for the purpose of being displayed in a user's Web browser, allowing the formatting of text, images and other website content.The HTML code itself is not actually seen by the user. Instead, the resulting website page is viewed in the user's Web browser.HTML files are usually saved in a text-based format and a website visitor can see the contents of the HTML code by selecting the View and Page Source options from the toolbar of their Internet browser.TML files are created for the purpose of being displayed in a user's Web browser, allowing the formatting of text, images and other website content. The HTML code itself is not actually seen by the user.