Abstract: A computing system includes two separate computer modules within the same computing housing. The computing system protects data from one computer from online threats by permanently keeping the computer offline and disconnected from networks or the Internet. Sensitive or important data may thus be worked on without fear of exposure to online threats that may sneak into the data storage using subterfuge or undetected entry. The user may switch to the other computer which has network connectivity to access network data or the Internet while the data in the offline computer is safely disconnected and protected from access by the other computer's connectivity.