The present invention relates to registration of read out information corresponding to written information and is intended to improve operationality of the registration or deletion of the written information and the read out information. The present invention relates to a read out information registration apparatus (e.g., cellular phone) that registers the read out information corresponding to the written information, and the registration (or deletion) of the read out information is performed in conjunction with the registration (or deletion) of the written information such as telephone directory information of a name of an opposite party, etc., a word used in e-mail, etc., and address descriptions to centralize the operation and process. A user is constrained from performing processes such as edition and deletion of the registration contents of the read out information, and the written information and the read out information are managed in a centralized manner.