Computer switching device, computer switching method therefor, program thereof and computer system thereof

摘要

The present invention provides a computer switching device that can easily monitor a plurality of computers for errors. A keyboard connection switch distributes the input operation information of keyboard over the plurality of computers in accordance with an instruction of a switching control device. A mouse connection switch distributes the input operation information of mouse over the plurality of computers in accordance with an instruction of the switching control device. A frame buffer buffers a screen from the VGA output of each computer. An image synthesis device forms an image by synthesizing the screens from the VGA outputs of the computers in accordance with an instruction of the switching control device.