Text input system, text input method and computer program product

A text input system includes a mobile device and a computer device. The mobile device includes an input module and a first communication module, the input module is configured to input an input information, and the first communication module outputs a pairing request information. The computer device includes a processing module, a display module and a second communication module. The processing module executes a text editing program and displays a text editing window on the display module. The second communication module is connected to the first communication module and receives the pairing. requesting information. When the pairing connection is successful, the first communication module transmits the input information to the second communication module, the processing module receives the input information and performs a process to obtain the text content, and the processing module further transmits the text content to the text editing program and displays it on the text editing window.