Abstract: The proposed technology relates to a method carried out by a computer system comprising a computer networking hardware for communicating in a first network and in a second network. The method comprises: emulating a first system virtual machine, and emulating a second system virtual machine. The first system virtual machine provides a first virtual platform that supports the execution of a complete first operating system, and the first system virtual machine is configured to communicate in the first network. The second system virtual machine provides a second virtual platform that supports the execution of complete second operating system, and the second system virtual machine is configured to communicate in the second network.

Abstract: An apparatus and a method for protection of data stored in a data storage unit that comprises a plurality of storage areas. A data interface connects to a computer system and transfer of a data signal from the computer system to the apparatus requests access to the data storage unit. A main control unit is configured to receive the data signal and is connected to the data storage unit. A user control unit is connected to the main control unit and is arranged to be set in different modes and generates a mode selection signal indicating the selected mode. The main control unit is configured to receive the mode selection signal, and depending on the selected mode, control connection of the apparatus to a plurality of networks, and direct the request to a storage area of the plurality of storage areas of the data storage unit.

Abstract: An apparatus and a method for protection of data stored in a data storage unit that comprises a plurality of storage areas. A data interface connects to a computer system and transfer of a data signal from the computer system to the apparatus requests access to the data storage unit. A main control unit is configured to receive the data signal and is connected to the data storage unit. A user control unit is connected to the main control unit and is arranged to be set in different modes and generates a mode selection signal indicating the selected mode. The main control unit is configured to receive the mode selection signal, and depending on the selected mode, control connection of the apparatus to a plurality of networks, and direct the request to a storage area of the plurality of storage areas of the data storage unit.

Abstract: A device is connected between an storage device controller and a storage device, providing data storage device protection in a manner transparent to the computing system and to the user of the computing system independent of operating system. The device protects the user from malicious code by preventing its execution and the unauthorized or unwanted user data modification by making the contents of one of the storage device read only. All the operations of the device are invisible to the computing system and to the user independent of installed operating system. The device can be disabled by a switch or by other means. When this happens the effect is the same as if the device were physically removed of the computing system.

Abstract: A device is connected between an storage device controller and a storage device, providing data storage device protection in a manner transparent to the computing system and to the user of the computing system independent of operating system. The device protects the user from malicious code by preventing its execution and the unauthorized or unwanted user data modification by making the contents of one of the storage device read only. All the operations of the device are invisible to the computing system and to the user independent of installed operating system. The device can be disabled by a switch or by other means. When this happens the effect is the same as if the device were physically removed of the computing system.