問47
頻出度★☆☆
手書き文字を読み取り, 文字コードに変換したいときに用いる装置はどれか。
平成27年度 秋期 ITパスポート試験 問47
This question's explanation and your answers so far.
解説
問 47
Incorrectア
BD-R (Blu-ray Disc Recordable) is a write-once optical disc recording medium used to store data. It is not an input device that reads characters and converts them into character codes, so it is incorrect.
Incorrectイ
CD-R (Compact Disc Recordable) is likewise a write-once optical disc recording medium, merely a medium for storing data. It has no character-recognition capability, so it is incorrect.
- ウ
正解 Choice ウ, OCR (Optical Character Reader/Recognition), is a device/technology that optically reads handwritten or printed characters on paper and other media and converts them into character codes a computer can handle. The question asks exactly for a device that reads handwritten characters and converts them into character codes, and OCR is that definition itself, so ウ is correct.
Incorrectエ
OMR (Optical Mark Reader) is a device that optically reads the filled-in positions (marks) on a mark sheet. It can only read the presence or absence of marks and cannot convert handwritten characters themselves into character codes, so it is incorrect.
ここがポイント
- OCR is a device that optically reads handwritten or printed characters and converts them into character codes; grasp how it differs from OMR, which reads mark positions.
- BD-R and CD-R are recording media (storage media), not input devices; distinguish them by classifying devices according to their role (input vs. recording).
用語