The purpose of this study was to clarify the information literacy of undergraduate students and problems in information education. An annual questionnaire survey was carried out by an anonymous method from 2003 to 2006. The survey was intended for third-year students in the Department of Radiological Technology. The questionnaire items were as follows: (1) ownership of a personal computer (PC), (2) usage purpose and frequency of PC operation, (3) operation frequency and mechanism of the Internet, and (4) IT terminology. The response rate was 100% in each year. The ratio of PC possession exceeded 80%. The ratio of students who replied “nearly every day” for the use of a PC and the Internet increased twofold and threefold in four years, respectively. More than 70% of students did not understand the mechanism of the Internet, and more than 60% of students did not know about TCP/IP. In the future, we need to consider information literacy education in undergraduate education.