To surely and quickly input characters for many character types, and to achieve space saving.

A character input device for inputting a plurality of types of characters is provided with a circular input device 300 having a plurality of buttons 311 to 318 in the periphery and providing button operation information including continuous depression based on a specific button; an input character storage part 210A for storing the plurality of types of characters; and a character input control part 220A for scrolling the input character storage part based on the operation information of the buttons of the circular input device, and for displaying the scrolled characters, and for extracting the characters by determining the displayed characters.

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