TextArea control is a editable text area that you are using in text editors (notepad, word, openoffice, pages etc.) or IM. It can contain multiple lines of text and can display mixed fonts, font styles and sizes. Learn how can you use it!
TextField control is a standard editable text field that you are using in fast every available application (browsers, preference panels, IM’s, e-mail clients etc.). It can contain only one line of text, with one font, font size and style. Learn how can you use it!