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Add a letter and crack the code! Add a letter and crack the code!
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 ...
The puzzle proved popular, and Sulzberger himself authored a Times puzzle before the year was out. [10] In 1950, the crossword became a daily feature. That first daily puzzle was published without an author line, and as of 2001 the identity of the author of the first weekday Times crossword remained unknown. [12]
A picture frame is a container that borders the perimeter of a picture, and is used for the protection, display, and visual appreciation of objects and imagery such as photographs, canvas paintings, drawings and prints, posters, mirrors, shadow box memorabilia, and textiles. Traditionally picture frames have been made of wood, and it remains ...
An American-style crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one letter ...
Code word, an element of a codebook designed so that the meaning of the code word is opaque without the code book; Code name, a clandestine name or cryptonym used to identify sensitive information; password, passcode, codeword, countersign; a word that is a special code for access, to pass a challenge of a sentry
PDF417 is a stacked linear barcode format used in a variety of applications such as transport, identification cards, and inventory management. "PDF" stands for Portable Data File. The "417" signifies that each pattern in the code consists of 4 bars and spaces in a pattern that is 17 units (modules) long.
The block code and its parameters. Error-correcting codes are used to reliably transmit digital data over unreliable communication channels subject to channel noise . When a sender wants to transmit a possibly very long data stream using a block code, the sender breaks the stream up into pieces of some fixed size.