Word processing refers to creating and editing documents using software like Microsoft Word, Google Docs, or OpenOffice Writer. A word processor allows users to write text, store it electronically, display it on screen, modify it using keyboard commands, and print it. Early word processors included WordStar, MacWrite, Easy Writer, and Bank Street Writer. Modern word processors offer features like editing, formatting, search/replace, spell check, and mail merge that make revising documents faster and easier than using a typewriter. Word processing is widely used for business, education, and personal applications.