In Mac OS , SimpleText , BBEdit, and Alpha are popular. Major Unix text editors include Pico , Emacs , and vi .
Text editors are the most durable and venerable programs for entering text into a computer.
They do have some drawbacks. They can't handle large documents and they can't view Web pages except as HTML source code. Still, text editors remain popular since they are the best way to control the precise layout of your Web page by manipulating the source code. In Unix, they are the only way of editing your Web page unless you are using the X Window System or a Unix workstation. The main desktop applications with HTML editing capabilities are Microsoft Word, Microsoft PowerPoint, and Corel WordPerfect.