A mobile terminal, comprising: a touchscreen; a memory; and a controller to: enter a memo mode by capturing an image currently displayed on the touchscreen, the captured image being displayed on the touchscreen; receive a handwriting input on the captured image; generate a memo item including the captured image and the received handwriting input; receive a first touch input which is sliding touch gesture, starting at an edge of the touchscreen; cause the touchscreen to display a layer in a sliding manner in response to the first touch input, the layer having a length corresponding to the vertical length of the touchscreen, the layer comprising an application group including at least one category; receive a second touch input of selecting a specific application group of the displayed application group in the layer, cause the touchscreen to display a pop-up window of the selected application, the pop-up window including a plurality of applications, receive a third touch input of dragging a specific application of the plurality of applications to the memo, link the specific application with the generated memo item in response to the third touch input; and cause the memory to store the memo linked with the specific application. a touchscreen; a memory; and a controller to: enter a memo mode by capturing an image currently displayed on the touchscreen, the captured image being displayed on the touchscreen; receive a handwriting input on the captured image; generate a memo item including the captured image and the received handwriting input; receive a first touch input which is sliding touch gesture, starting at an edge of the touchscreen; cause the touchscreen to display a layer in a sliding manner in response to the first touch input, the layer having a length corresponding to the vertical length of the touchscreen, the layer comprising an application group including at least one category; receive a second touch input of selecting a specific application group of the displayed application group in the layer, cause the touchscreen to display a pop-up window of the selected application, the pop-up window including a plurality of applications, receive a third touch input of dragging a specific application of the plurality of applications to the memo, link the specific application with the generated memo item in response to the third touch input; and cause the memory to store the memo linked with the specific application. enter a memo mode by capturing an image currently displayed on the touchscreen, the captured image being displayed on the touchscreen; receive a handwriting input on the captured image; generate a memo item including the captured image and the received handwriting input; receive a first touch input which is sliding touch gesture, starting at an edge of the touchscreen; cause the touchscreen to display a layer in a sliding manner in response to the first touch input, the layer having a length corresponding to the vertical length of the touchscreen, the layer comprising an application group including at least one category; receive a second touch input of selecting a specific application group of the displayed application group in the layer, cause the touchscreen to display a pop-up window of the selected application, the pop-up window including a plurality of applications, receive a third touch input of dragging a specific application of the plurality of applications to the memo, link the specific application with the generated memo item in response to the third touch input; and cause the memory to store the memo linked with the specific application.