☰ Contents · Computing

Coding information

Lessons 3 · 1 lessons · B. Boltayev, M. Mahkamov, A. Azamatov, S. Rahmonqulova. Informatics and Information Technologies, Grade 7. Revised and expanded third edition. “O‘zbekiston milliy ensiklopediyasi” State Scientific Publishing House, Tashkent, 2017
Answers are for parents and teachers.
1
Encrypt “SCHOOL” by the Caesar method with shift 2 (English alphabet).
2
Decrypt (shifted by 3): HDVB
3
Write “SOS” and “OK” in Morse code.
4
Code “BAG” with the English alphabet-order method (A=01, B=02, …).
5
Invent your own coding method: code 5 words and give them to a classmate to decode. Keep the code table on a separate sheet.