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viewimage.php?no=24b0d769e1d32ca73fee8ffa11d02831a17f4634ed1b2080eb0e1d464377fde40955a88a2a85758f14ce5be2977849a3b02acf15c2e4d754494d9dbd9b3909495f6a38c048e0fee0bb6163f893cd9f03bc95c87a72a77a3c8913b9124597820f66b56eab

첫번째 사진 세븐 세그먼트

두번째 사진 회로도

세번째 전가산기 시연

네번째 시연결과
0111 + 0001 = 1000   (이진법)
7 + 1 = 8