The wireless keyboard uses wireless technology to communicate with the computer, eliminating the need for wires. Currently, there are only three types of mainstream wireless keyboards: 27Mhz, 2.4G and Bluetooth wireless keyboards.
Ordinary keyboards are membrane keyboards, which are characterized by low price, low noise, and low cost, and they have occupied most of the market. The membrane keyboard architecture is very simple. In addition to the upper and lower covers and keycaps, you will also see rubber caps and three films after disassembling the keyboard.
The crater architecture refers to the design between the keycap of the keyboard and the keyboard. Because the keycap uses a process design similar to the "crater" shape, it is named the crater architecture. The crater architecture requires longer bond passes.
Also called scissor-foot architecture, the "X-frame" keyboard has a small and fairly balanced striking force. It takes less effort when typing on the keyboard, should not be tired, and feel comfortable. The "X architecture" keyboard can be made very thin and has a short keystroke. Keyboards on laptop computers are all such architectures.
A mechanical keyboard is a type of keyboard. Each key has a separate switch to control the closing. This switch is also called "axis", which can achieve full keys without conflict. According to the classification of the micro switch, the mechanical keyboard can be divided into tea axis, green axis, white axis, black axis and red axis.
The touch of the black axis is straight up and down, without any paragraph feeling, and the noise is small. Its trigger key travel is 2.0mm, and the service life of a single axis is up to 50 million times (the other axis is 20 million times), which is very suitable for gaming.
The strongest sense of paragraphs, the loudest Click sound, and the strongest sense of machinery, you need to press 2.4mm to trigger, and the typing rhythm is full. There will be a "click" sound when pressed down. However, due to the strong sense of paragraphs, it is rarely used by gamers.
Mechanical axis red axis
The red-axis mechanical keyboard has no paragraph feeling when it is tapped, and it is straight up and down. The trigger key stroke is 2.0mm (same as the black axis), which makes it easier to tap, and it can take into account the needs of games and typing.
PS / 2 interface
PS / 2 communication protocol is a two-way synchronous serial communication protocol. The two ends of the communication are synchronized through Clock (clock pin), and data are exchanged through Data (data pin). The PS / 2 interface supports hot plugging, but it needs to be restarted after plugging in, which is different from the current hot plugging.
The universal serial bus is a serial bus standard that connects computer systems with external devices. It is also a technical specification of input and output interfaces. It is widely used in information communication products such as personal computers and mobile devices.
2.4G wireless technology
Its frequency band is between 2.400GHz and 2.4835GHz. It is one of the three major wireless technologies on the market (including Bluetooth, 27M, 2.4G), and is more commonly used in wireless keyboards and mice.