07양서주_통신 수단(전화)의 발달 조사하기 by 양서주 https://padlet.com/21g3207/k5mozogjp0nnnq55 en-us 2021-06-17 02:09:17 UTC 2025-11-05 21:58:57 UTC hello@padlet.com 1.교환원이 있는 전화 21g3207 https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611272956 교환원한테 전화를 걸어서 00바꿔주라고 하는 전화기다.]]> 2021-06-17 02:14:30 UTC https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611272956 2.유선 전화 21g3207 https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611281436 유선전화기로 다른 사람과 소통할수 있다.]]> 2021-06-17 02:18:27 UTC https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611281436 3.무선 전화 21g3207 https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611289341 유선 전화기가 발달해서 만들어진 전화기다.]]> 2021-06-17 02:22:13 UTC https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611289341 4.스마트폰 21g3207 https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611297041 통화, 문자, 영상통화 등으로 소통을 할수 있다.]]> 2021-06-17 02:26:02 UTC https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611297041 1.교환원이 있는 전화 21g3207 https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611307195 2021-06-17 02:31:25 UTC https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611307195 2.유선 전화 21g3207 https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611311615 2021-06-17 02:33:39 UTC https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611311615 3.무선 전화 21g3207 https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611317263 2021-06-17 02:36:38 UTC https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611317263 4.스마트폰 21g3207 https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611320964 2021-06-17 02:38:43 UTC https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611320964 5.미래에 통신수단 21g3207 https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611330196 2021-06-17 02:43:33 UTC https://padlet.com/21g3207/k5mozogjp0nnnq55/wish/1611330196