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2. Secret Coders - Wikipedia

   en.wikipedia.org/wiki/Secret_Coders

   Publisher. First Second. Publication place. United States. Secret Coders is a series of graphic novels that combines logic puzzles, basic programming instruction, and a story where a group of seventh graders uncover a secret coding school. The series is written by Gene Luen Yang, illustrated by Mike Holmes, and published by First Second Books.

3. Cryptography - Wikipedia

   en.wikipedia.org/wiki/Cryptography

   However, in cryptography, code has a more specific meaning: the replacement of a unit of plaintext (i.e., a meaningful word or phrase) with a code word (for example, "wallaby" replaces "attack at dawn"). A cypher, in contrast, is a scheme for changing or substituting an element below such a level (a letter, a syllable, or a pair of letters, etc ...

4. Bacon's cipher - Wikipedia

   en.wikipedia.org/wiki/Bacon's_cipher

   Bacon's cipher or the Baconian cipher is a method of steganographic message encoding devised by Francis Bacon in 1605. [1][2][3] In steganograhy, a message is concealed in the presentation of text, rather than its content. Baconian ciphers are categorized as both a substitution cipher (in plain code) and a concealment cipher (using the two ...

5. Encryption - Wikipedia

   en.wikipedia.org/wiki/Encryption

   Encryption. In cryptography, encryption is the process of transforming (more specifically, encoding) information in a way that, ideally, only authorized parties can decode. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Despite its goal, encryption does not ...

6. Treasure Mountain! - Wikipedia

   en.wikipedia.org/wiki/Treasure_Mountain!

   Educational, adventure. Mode (s) Single-player. Treasure Mountain! is an educational video game published by The Learning Company in 1990 [ 1 ] for DOS, Windows and Macintosh. It teaches children aged five to nine reading, basic math, and logic skills. [ 1 ]Treasure Mountain is the third installment of the Super Seekers series.

7. Bulls and cows - Wikipedia

   en.wikipedia.org/wiki/Bulls_and_Cows

   This software uses "A" to denote "bulls" (digit in the correct position) and "B" to denote "cows" (digit in the wrong position). Bulls and cows (also known as cows and bulls or pigs and bulls) is a code -breaking mind or paper and pencil game for two or more players. The game is played in turns by two opponents who aim to decipher the other's ...