Google Docs is an online word processing program that allows users to create documents and collaborate with others in real time. It offers features like uploading Word documents, adding formatting, inviting collaborators, viewing revision histories, and downloading files in multiple formats. Google Docs is free to use and part of Google Drive. It allows real-time collaboration and tracking of document revisions. Some ways it can be used include preparing assignments, collecting feedback, sharing ideas, conducting surveys, and creating online forms.