Abstract: Disclosed are an electronic device, an operating method thereof, and a recording medium. The electronic device, according to various embodiments of the present disclosure, includes: a display module; and a processor that controls to display, on the display module, a keypad that contains input elements for inputting a character to the electronic device, wherein at least some of the displayed input elements are displayed to correspond to at least one of a location where at least one character element that forms the character is disposed in the character and a pattern in which a user actually uses the character.

Abstract: A resistive memory device includes a first electrode, a resistive oxidation structure and a second electrode. The resistive oxidation structure has sets of oxidation layers stacked on the first electrode. Each set is made up of a first metal oxide layer and a second metal oxide layer which is disposed on and is thinner than the first metal oxide layer. The first metal oxidation layer of the first one of the sets of oxidation layers contacts an upper surface of the first electrode. The second electrode is formed on the resistive oxidation structure. The resistance of the oxidation structure can be changed by an electric field.