Abstract: Disclosed is a display apparatus including: a display; an input comprising circuitry configured to receive a key moving command for moving between keys of an on-screen keyboard displayed on the display and a key-group selecting command for selecting a key group of the on-screen keyboard; and a processor configured to control a user interface (UI) of the on-screen keyboard, the keyboard comprising a first key group including keys=corresponding to a plurality of letters and a second key group including keys=corresponding to a plurality of functions, to be displayed on the display, to control an input marker moving between first keys of the first key group in response to the key moving command and at least one dummy marker moving between second keys of the first key group to be displayed if the first key group is selected by the key-group selecting command, to control an input of the first key to be made if a first key corresponding to the input marker is selected, to control a function marker moving between key

Abstract: Disclosed is a display apparatus including: a display; an input comprising circuitry configured to receive a key moving command for moving between keys of an on-screen keyboard displayed on the display and a key-group selecting command for selecting a key group of the on-screen keyboard; and a processor configured to control a user interface (UI) of the on-screen keyboard, the keyboard comprising a first key group including keys=corresponding to a plurality of letters and a second key group including keys=corresponding to a plurality of functions, to be displayed on the display, to control an input marker moving between first keys of the first key group in response to the key moving command and at least one dummy marker moving between second keys of the first key group to be displayed if the first key group is selected by the key-group selecting command, to control an input of the first key to be made if a first key corresponding to the input marker is selected, to control a function marker moving between key

Abstract: An electronic apparatus and a control method thereof are provided. The electronic apparatus includes a memory having a protection area and storing data of a first operating system (OS) and at least one first program involved with first OS in the protection area; at least one processor configured to execute the at least one first program and at least one second program involved with a second OS having an authority higher than the first OS; and a memory monitor comprising circuitry configured to detect whether an access to the protection area of the memory occurs, to interrupt the access if the access occurs, and to perform a security verification of the data stored in the protection area. The electronic apparatus may guarantee and/or improve integrity thereof using a hardware device, which can directly monitor the memory at a CPU environment in which a security area and a general area are separated.