Keyboards are easily damaged computer peripherals and are also indispensable computer supplies. Those who frequently use computers, especially programmers (and programresses), use them every day; keyboards are prone to problems, and it is particularly annoying when the keyboard malfunctions and some letters or numbers cannot be typed. Here, pcjson.com provides you with an online tool to test the functionality of your keyboard keys. Each time you press a key on the keyboard, the corresponding key on the virtual keyboard will highlight in color.
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