The document defines and provides examples of different types of computers. It discusses personal computers, workstations which can be a single computer or group connected to a network, video consoles designed for gaming, servers that supply network data and storage, clients that request information from servers, mainframe computers for large data, supercomputers as the fastest for processing trillions of instructions, handheld computers as small pocket devices, PDAs as smaller than notebooks, smartphones integrating phone and PDA functions, portable media players for audio and video, and microcontrollers built into controlled devices.