An information processing terminal configured to run a plurality of operating systems (120, 150) having a function of sending to a process a focus status notification indicating whether an output is in front and whether the process is active, comprising: a domain control means for controlling which of the plurality of operating systems (120, 150) is an active operating system; a first screen activation monitoring means for running on a first operating system among the plurality of operating systems (120, 150) and monitoring a focus status notification from the first operating system; a second screen activation monitoring means for running on a second operating system among the plurality of operating systems (120, 150) and monitoring a focus status notification from the second operating system; and a resource management means for managing a resource used by each of the operating systems (120, 150), wherein when receiving a focus OFF notification, being the focus status notification from the second operating system, indicating that an output is moved to back and no longer active, triggered that a second application running on the second operating system has come to front, the second screen activation monitoring means sends a domain switch request notification for requesting to set the second operating system as an active operating system to the domain control means, when receiving the domain switch request notification from the second screen activation monitoring means, the domain control means sends a domain switch notification notifying that the first operating system is to be set as an inactive operating system to the first operating system, when receiving the domain switch notification, the first operating system sends a focus ON notification, being the focus status notification, indicating that an output has come to front and become active to the first screen activation monitoring means and further sends the focus OFF notification to a first application running on the first operating system, and when receiving a resource release notification notifying release of a resource from the first application, triggered by receipt of the focus OFF notification, the resource management means makes control to release a resource acquired by the first application. a domain control means for controlling which of the plurality of operating systems (120, 150) is an active operating system; a first screen activation monitoring means for running on a first operating system among the plurality of operating systems (120, 150) and monitoring a focus status notification from the first operating system; a second screen activation monitoring means for running on a second operating system among the plurality of operating systems (120, 150) and monitoring a focus status notification from the second operating system; and a resource management means for managing a resource used by each of the operating systems (120, 150), wherein when receiving a focus OFF notification, being the focus status notification from the second operating system, indicating that an output is moved to back and no longer active, triggered that a second application running on the second operating system has come to front, the second screen activation monitoring means sends a domain switch request notification for requesting to set the second operating system as an active operating system to the domain control means, when receiving the domain switch request notification from the second screen activation monitoring means, the domain control means sends a domain switch notification notifying that the first operating system is to be set as an inactive operating system to the first operating system, when receiving the domain switch notification, the first operating system sends a focus ON notification, being the focus status notification, indicating that an output has come to front and become active to the first screen activation monitoring means and further sends the focus OFF notification to a first application running on the first operating system, and when receiving a resource release notification notifying release of a resource from the first application, triggered by receipt of the focus OFF notification, the resource management means makes control to release a resource acquired by the first application.