Terminal or computer display terminal, is a computer system of the input and output devices. Computer display terminal along with the centralized processing pattern of the mainframe era, and with the development of computing technology and continuous development. Terminal is also called the sharing, sharing, Shared computer, the computer to share. Terminal is a host into multiple user equipment used at the same time, can let 1 - a host points out 50 people use this host at the same time, the rest of the each extension with a display, a set of mouse and keyboard, a terminal of a set of independent computers. Each terminal can at the same time, independent of surfing on the Internet, online games and ASP, Instant Messenger, Instant messaging) 、私人E - Mail( Private E-mail) Such as the Internet application, can also be used for Office suite software, multimedia and so on any Windows application software, and no need to complicated and expensive standard computer. Characters of dumb terminals and the terminal equipment of the age of graphics terminal business service industry can only be used for window and counter the situation will be gone forever, online banking, online securities, bank counter low ark business such as the business will be widely used in network terminal equipment, network terminal equipment application domain also extend to the telecommunications, electric power, taxation, education and government and other emerging non-financial. Hardware parameters: refers to the main terminal equipped with detail, generally provides an external port type and quantity, a brief explanation of the main parts of. Display performance: to provide the type of terminal display screen and display performance way of the simple instructions.