Learn in the textbookEncoding and Character Codes
DefinitionJIS Code (JISコード) is a character code defined by Japanese Industrial Standards (JIS); it uses 1 byte for alphanumerics and the like, and 2 bytes for kanji, hiragana and full-width kana.
ExplanationCharacters represented in 1 byte are called single-byte codes and those in 2 bytes double-byte codes; the alphanumeric set is defined in JIS X 0201 and the set of kanji and other characters in JIS X 0208, for example. In the narrow sense, JIS Code refers to the format that inserts special switching codes whenever a string changes between single-byte and double-byte characters, and it has mainly been used for email.
AnalogyIt is like a shared table of character numbers issued nationwide. Devices using the same table point to the same character with the same number.
Memory hookJIS stands for Japanese Industrial Standards, the same family of standards that covers Japanese industrial products.