Patent technology of network security isolation card

Adding a hard disk to a computer, by controlling the hard disk and switching the network cable, makes a hard disk only effective for one network in the internal and external network environment, and its network physical connection is completely separated, without any public storage information, thus realizing the real physical isolation of a single computer between the two networks. A single computer can realize the information security function of network physical isolation at low cost, which can only be realized by traditional two computers, and one computer can be used for two purposes, which greatly improves the resource utilization rate of the computer system. The patented product is safe, reliable, convenient and economical, and can meet various needs of different users. The company is the holder of the basic patent technology of physical isolation of single-machine dual-disk network, and has many invention patent technologies such as control switching mode, compatibility and applicability based on physical isolation of single-machine dual-disk network. The above is the basic patent technology of physical isolation of graphics network, and it is also the core patent of dual-disk isolation card.