| CPC G06F 9/45558 (2013.01) [G06F 2009/45595 (2013.01)] | 19 Claims | 

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               1. A signal processing device comprising: 
            a processor configured to perform signal processing for a display located in a vehicle, 
                wherein the processor is configured to execute first to third virtual machines, 
                wherein the first virtual machine operates as a server virtual machine, the second virtual machine and the third virtual machine operate as guest virtual machines, and the second virtual machine executes at least one container on a container engine, 
                wherein the container comprises an abstraction layer changed based on a platform, an operating system, or an executed application, and 
                wherein the processor is configured to download a service container from a server, check dependency of a pre-installed first container, generate the abstraction layer based on the downloaded service container, and add the abstraction layer in the first container. 
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