Keyboard device and data communication method using the same

A data communication method using a keyboard device, comprising:

• transmitting, by the keyboard device, a preparation request command, required to request a computer to prepare for data communication, to the computer;
• and
• receiving, by the keyboard device, a data reception readiness signal from the computer;
• generating, by the keyboard device, data that is a set of commands to be executed by the computer using a key input signal that is generated when a key is input;
• transmitting, by the keyboard device, after receiving the data reception readiness signal from the computer the generated data to the computer, thus allowing the computer to execute each command corresponding to the data;
• and
• receiving, by the keyboard device, results of executing the command corresponding to the data from the computer,
• wherein the command includes a line coding method to be used when the computer transmits data to the keyboard device, and
• wherein the computer generates a toggle key signal to correspond to the line coding method and transmits the toggle key signal to the keyboard device,
• wherein the command is executed in a shell of an operating system of the computer, and
• wherein the data includes at least one of a script language and a compile language as the command which requests the results.