A personal computer (PC) is a type of microcomputer. A microcomputer is a class of computers that are small, moderate, and have the performance to be used by a single user. Personal computers are designed to meet the computing needs of individual users, including document processing, web browsing, entertainment**, gaming, and more.
Broadly speaking, personal computers can be divided into the following categories:
Desktop PC: A computer that is placed on a desk for use, usually consisting of a main chassis, monitor, keyboard, mouse, etc. They have good scalability and strong performance.
Laptop: A portable computer that integrates a monitor, keyboard, and touchpad into one, making it easy to carry and use.
Tablet PC: A portable device with a touchscreen that can be operated with a finger or stylus, and although it can also be considered a type of personal computer, it is usually less powerful than laptops and desktops.
All-in-one PC: A desktop computer that integrates a monitor and a host computer, with a good appearance design and space-saving characteristics.
The main differences between a personal computer and a mainframe computer, such as mainframes and supercomputers, are size, processing power, and number of users. Personal computers are designed for a single user's day-to-day computing tasks, while mainframe computers are designed to handle a large number of complex computing tasks, serve multiple users, or perform professional-grade computing needs. As technology evolves, so does the performance of personal computers, which meets the needs of more professional fields.