The portable computer has a mechanism (3) for wireless data communication and a controller (7) with adjustable operating conditions. The first operating condition is when all components of the portable computer are fully functional. A second operating condition is when all components of the portable computer are in a state of rest with reduced functionality and lower current consumption. A third operating condition is provided with the wireless data communication of the first full functionality, and components of the portable computer, when the communication does not serve in the state of reduced functionality.
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