IntroductionI don't know much about what an input device is even though I have been using computers for many years. I thought an input device was just a component inside the computer. I also didn't know the game role of the input device. I am among those people who don't care much about the internal component of the computer. Now, as I reflect on it, I seem to have ignored the importance of an input device. What is input? Input is really important for the computer. Through this device, users can enter data or instructions into a computer. He changed something on the screen through the response. There are many types of input devices that users can select depending on their application to achieve the desired result. There are many input technologies, such as keyboard, pointing device, trackball, touch screen, touchpad, and audio input. These devices can help users connect directly to the computer system. Keyboard The keyboard is an important input device. It is rectangular in size. It also contains many keys including numeric keypad, alphabet letters, punctuation marks and others. Without using this input device, the user cannot easily type text and numbers into a computer. This is for general keyboard only. There are also many types of keyboards due to their function. The gaming keyboard has a special design for the person who likes to play games or create games. The gaming keyboard has its own special programmable keys. Nowadays, the world is more advanced. They also design an ergonomic keyboard. This design is special for employees who are always sitting in front of the computer. This design can prevent muscle pain that can lead to long-term disability. It's really comfortable. Furthermore, the keyboard can also be found in the laptop. It is different from the center of the paper......of the input device. As I read and reflect on the vast and variety of input devices, I have now realized their importance to humanity as it brings us enormous benefits. In conclusion, the input device is part of the computer hardware. It allows users to log in and provide instructions to be able to carry out the process in the computer system. An input device has improved a lot over time. It is substantial to say that people of this generation cannot live without these input devices. The input device has not only made our lives easier but also helps to ease our finances and time. For example, the innovation of the recently popular application, Wechat. This application is designed for those who are illiterate. People can simply tap the "wait to speak" button and say the word. Then, release the button, the device will record your voice and send it. This will be much easier for them.