Microsoft Word (or other word processing software): mainly used to create, edit and format documents, such as letters, reports, papers, etc. It provides a wealth of word processing tools and functions, including font style, paragraph format, header and footer, table of contents and so on. , suitable for all kinds of text editing needs.

Microsoft PowerPoint (or other presentation software): mainly used to create presentations to show and convey information. It provides slide layout, text boxes, pictures, charts, animation effects and other functions to help users design visually attractive structured presentations.

WPS Office (or other office suite software): WPS Office is a set of office software including word processing, table processing and presentation making. Similar to Microsoft Office, it provides functions similar to Word, Excel and PowerPoint, which can be used to process documents, make tables and create presentations.

Adobe Photoshop (PS): Mainly used for image processing and graphic design. It has powerful editing function, which can be used to modify images, adjust colors, add special effects, create graphics and so on. PS is often used by designers, photographers and artists for image processing, photo editing and creation.

It should be noted that the functions of these softwares go far beyond the above main functions. They have more complex and rich functions and can be widely used according to users' needs and skills.