Abstract: According to embodiments of the disclosure, a UE, a server, a control method of the UE, and a control method of the server may be provided to efficiently use storage space of the UE by performing AOT compilation based on the usage frequency of an application and function by a user and managing the AOT compiled machine code.

Abstract: Provided is a user equipment (UE) including a storage, and a controller that may identify a first assembly file, among a plurality of assembly files of a first application, having a first usage frequency that is equal to or greater than a predetermined threshold, ahead-of-time (AOT) compile the first assembly file based on the first assembly file having the first usage frequency that is equal to or greater than the predetermined threshold, obtain a first compilation result based on AOT compiling the first assembly file, store the first compilation result in the storage, and execute the first application by using the first compilation result stored in the storage based on a request to execute the first application.

Abstract: A display apparatus and a display method are provided. The display apparatus includes a display configured to display a user interface including at least one item corresponding to at least one application, wherein, based on an input for selecting the item, an application corresponding to the selected item is executed; and a controller configured to remove digital rights management (DRM) of the at least one application corresponding the at least one item before the input for selecting one of the at least one displayed item is received.