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Mnemonic systemsKey-word mnemonics
Acronym and acrostic mnemonicsOne common mnemonic for remembering lists consists of an easily remembered word, phrase, or rhyme whose first letters are associated with the list items. The idea lends itself well to memorizing hard-to-break passwords as well. Though easy to derive, they are often not as powerful as the classical systems because they do not make use of visualization techniques. Anamonics (Scrabble)Many tournament Scrabble players employ anamonics, a form of initialization mnemonic, for the purposes of learning and quickly recalling sets of acceptable words. An anamonic consists of a "stem" (usually of six or seven letters), paired with a semantically related phrase, in which each letter of the phrase can be added to the stem and rearranged to form at least one acceptable word. For example, if a player has the tiles ACDEIRT on her rack, and recalls the anamonic "DICE-ART = casino math diploma", they will know precisely which letters may be played through to form 8-letter words, and will hopefully be aided in finding the words: ACCREDIT, RADICATE, ACRIDEST, RATICIDE, DICENTRA, CERATOID, TIMECARD, CITRATED/TETRACID/TETRADIC, TRACHEID, READDICT, PICRATED, and ARTICLED/LACERTID. Other mnemonic systems
Arbitrariness of mnemonicsA curious characteristic of many memory systems is that mnemonics work despite being (or possibly because of being) illogical, arbitrary, and artistically flawed. "Roy" is a legitimate first name, but there is no actual surname "Biv" and of course the middle initial "G" is arbitrary. Why is "Roy G. Biv" easy to remember? Medical students never forget the arbitrary nationalities of the Finn and German. Any two of the three months ending in -ember would fit just as euphoniously as September and November in "Thirty days hath...", yet most people can remember the rhyme correctly for a lifetime after having heard it once, and are never troubled by doubts as to which two of the -ember months have thirty days. A bizarre arbitrary association may stick in the mind better than a logical one.[citation needed][original research?]
Assembly mnemonicsIn assembly language a mnemonic is a code, usually from 1 to 5 letters, that represents an opcode, a number. Programming in machine code, by supplying the computer with the numbers of the operations it must perform, can be quite a burden, because for every operation the corresponding number must be looked up or remembered. Looking up all numbers takes a lot of time, and mis-remembering a number may introduce computer bugs. Therefore a set of mnemonics was devised. Each number was represented by an alphabetic code. So instead of entering the number corresponding to addition to add two numbers one can enter "add". Although mnemonics differ between different CPU designs some are common, for instance: "sub" (subtract), "div" (divide), "add" (add) and "mul" (multiply). This type of mnemonic is different from the ones listed above in that instead of a way to make remembering numbers easier, it is a way to make remembering numbers unnecessary (by relying on some external way to tie each mnemonic to a number). UK Fuel MnemonicsAll UK petrol (gas) stations use a code known as a Mnemonic to identify itself. This remains the same no matter how many times the service station changes hands. These are made up of seven letters. The first three letters are the site name. The next set of three are the name of the town the site is located in or near. The seventh letter is always an R. For example, a site named Rock in Stamford has the mnemonic ROCSTAR. Occasionally an extra letter is added if there are, or once were, two sites with the same name on either side of a motorway or trunk road. As the sites are usually appended South or North, depending on which side of the road they are, this letter is added either between the 3rd and 4th letter or before the final R. So a site called Orsett North near Ockendon becomes ORSNOCKR or ORSOCKNR, and Orsett South is ORSSOCKR or ORSOCKSR. References
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