How to directly control the motor with a computer without using microcontrollers, etc?

It is completely possible to directly control the motor with a computer without using microcontrollers, etc. Taking a stepper motor as an example, provide a solution.
Materials to be prepared: computer (or other control equipment), stepper motor driver, stepper motor, several cables
Step: 1. Connect the stepper motor driver to the computer. This step requires selecting the appropriate cables and interfaces based on the model and interface of your stepper motor driver. If your stepper motor drive supports a USB interface, you can directly connect the computer and drive using a USB cable.
2. Install drivers. Many stepper motor drivers require the installation of corresponding driver programs to function properly after being connected to a computer. This step requires referring to the driver installation guide for operation.
3. Write control programs. Using programming languages on computers (such as Python, C++, etc.), write control programs to control the action of stepper motors. Control of stepper motors can be achieved by calling the API interface provided by the driver program.
4. Testing. After writing the control program, it is necessary to conduct testing to ensure that the stepper motor can operate according to your expectations.

It can be controlled by adding a digital switch card, or by connecting to a digital switch control card through a serial port, or by connecting to a digital switch control card via USB