Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
Classification of mouse Rolling ball mouse: The rubber ball is driven to the grating wheel with the crystal pulse signal sensor of the light-emitting diode and the phototransistor. Optical mouse: light source pulse signal sensor with light-emitting semiconductor…
What is a mouse? The mouse is an external input device of the computer, and it is also an indicator of the vertical and horizontal coordinates of the computer display system. Its standard name should be "mouse", the English name is "Mouse", the use of…
the characteristics of mechanical keyboard 1. Each button is composed of an independent micro-motion, so the button has a strong sense of paragraph, resulting in a special feel suitable for game entertainment, so it is usually used as a relatively expensive…
the purchase of the keyboard 1. touch of the keyboard As the input device with the most daily contact, the feel is undoubtedly the most important. The feel is mainly determined by the strength of the keys and the degree of resistance to the keys. To…
Common classification of keyboards There are two types of conventional keyboards: mechanical keys and capacitive keys. In the industrial computer keyboard, there is also a keyboard with a light touch membrane key. The mechanical keyboard is the earliest…
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