letter code
41SPARS code — SPARS is an acronym for the Society of Professional Audio Recording Services. The SPARS code is a three letter code that appears on some Compact Discs recordings telling the consumer what type of tape recorder was used in the recording process,… …
42Country code top-level domain — For the full list of country code top level domains, see List of Internet top level domains. A country code top level domain (ccTLD) is an Internet top level domain generally used or reserved for a country, a sovereign state, or a dependent… …
43List of Ace SF letter-series single titles — Ace Books have published hundreds of science fiction titles, starting in 1953. Many of these were Ace Doubles (dos a dos format), but they also published many single volumes. Between 1953 and 1968, the books had a letter series identifier; after… …
44Genetic code — A series of codons in part of a messenger RNA (mRNA) molecule. Each codon consists of three nucleotides, usually representing a single amino acid. The nucleotides are abbreviated with the letters A, U, G and C. This is mRNA, which uses U (uracil) …
45The Da Vinci Code (film) — The Da Vinci Code Theatrical poster Directed by Ron Howard Produced by …
46Airport code — An airport code is a short code used to identify a specific airport. There are two international systems used:*IATA airport code, a three letter code which is more commonly known to the public *ICAO airport code, a four letter code which is more… …
47Trench code — In cryptography, trench codes were codes used for secrecy by field armies in World War I. A reasonably designed code is generally more difficult to crack than a classical cipher, but of course suffers from the difficulty of preparing,… …
48Bayer Code — is a system of identifying crop plants and their pests (including weeds and diseases) by a unique code. They are a core component of a database of names, both scientific and vernacular. Plants are identified by a 5 letter code, other organisms by …
49Chinese telegraph code — The Chinese Telegraph Code, Chinese Telegraphic Code, or Chinese Commercial Code (simplified Chinese: 中文电码; traditional Chinese: 中文電碼; pinyin: Zhōngwén diànmǎ or simplified Chinese: 中文电报码; traditional Chinese: 中文電報碼; pinyin: Zhōngwén… …
50List of Ace miscellaneous letter-series single titles — Ace Books have published hundreds of genre titles, starting in 1952, including a few that did not fit into the standard three genres that Ace focused on science fiction, westerns, and mysteries. A few of these were in dos à dos format, but many… …
