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 Tags. HTML markup tags are usually called HTML tags. * HTML tags are keywords (tag names) surrounded by angle brackets like <html>. * HTML tags normally come in pairs like <b> and </b>. *The first tag in a pair is the START tag, the second tag is the END tag.