An electronic device , such as a train device, comprising: - a processor , - a memory unit , associated with the processor and including: + a boot program , + at least one boot partition , characterized in that each boot partition includes a kernel , a network configuration manager and a query manager , the query manager being configured to manage at least one query received from an electronic apparatus outside the electronic device , the boot program being configured to command, for the or one of the boot partitions , the activation of the kernel , the network configuration manager and the query manager , and in that the query manager is configured so as to be able, after it is activated, to continuously receive at least one query from the outside apparatus , the memory unit including a non-volatile memory and a volatile memory , the non-volatile memory being able to store the boot program and the boot partition(s) , the volatile memory including an execution memory zone configured to execute the boot program , the kernel , the network configuration manager and the query manager of the corresponding boot partition, and the device further comprising an allocation module configured to allocate part of the execution memory zone to the query manager , then to reserve said part allocated to execution of the query manager and keep the query manager resident in said allocated part , the device further comprising a primary activation module configured to create, in the volatile memory , a memory storage zone allocated to the corresponding boot partition , then to load, in the memory storage zone , the kernel , the network configuration manager and the query manager of said boot partition . - a processor , - a memory unit , associated with the processor and including: + a boot program , + at least one boot partition , + a boot program , + at least one boot partition , characterized in that each boot partition includes a kernel , a network configuration manager and a query manager , the query manager being configured to manage at least one query received from an electronic apparatus outside the electronic device , the boot program being configured to command, for the or one of the boot partitions , the activation of the kernel , the network configuration manager and the query manager , and in that the query manager is configured so as to be able, after it is activated, to continuously receive at least one query from the outside apparatus , the memory unit including a non-volatile memory and a volatile memory , the non-volatile memory being able to store the boot program and the boot partition(s) , the volatile memory including an execution memory zone configured to execute the boot program , the kernel , the network configuration manager and the query manager of the corresponding boot partition, and the device further comprising an allocation module configured to allocate part of the execution memory zone to the query manager , then to reserve said part allocated to execution of the query manager and keep the query manager resident in said allocated part , the device further comprising a primary activation module configured to create, in the volatile memory , a memory storage zone allocated to the corresponding boot partition , then to load, in the memory storage zone , the kernel , the network configuration manager and the query manager of said boot partition . <EOS>