Tamil Alphabets In Hindi Pdf Download [UPD]

Alphabets, or phonemic alphabets, are sets of letters, usually arranged in a fixed order, each of which represents one or more phonemes, both consonants and vowels, in the language they are used to write. In some case combinations of letters are used to represent single phonemes, as in the English sh, ch and th.

The best-known and most widely-used alphabets are the Latin or Roman alphabet and the Cyrillic alphabet, which have been adapted to write numerous languages. Most other alphabets are used for a single language or just a few languages.

Tamil Alphabets In Hindi Pdf Download

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Peter T. Daniels distinguishes true alphabets, which have letters representing both consonants and vowels, from both abugidas and abjads, which only have letters for consonants. Broadly, abjads lack vowel indicators altogether, while abugidas represent them with diacritics added to letters. In this narrower sense, the Greek alphabet was the first true alphabet,[11][12] while the Phoenician alphabet it derived from was an abjad.[13]

Alphabets are usually associated with a standard ordering of letters. This makes them useful for purposes of collation, which allows words to be sorted in a specific order, commonly known as the alphabetical order. It also means that their letters can be used as an alternative method of "numbering" ordered items, in such contexts as numbered lists and number placements. There are also names for letters in some languages. This is known as acrophony; It is present in some modern scripts, such as Greek, and many Semitic scripts, such as Arabic, Hebrew, and Syriac. It was used in some ancient alphabets, such as in Phoenician. However, this system is not present in all languages, such as the Latin alphabet, which adds a vowel after a character for each letter. Some systems also used to have this system but later on abandoned it for a system similar to Latin, such as Cyrillic.

The Proto-Sinaitic script eventually developed into the Phoenician alphabet, conventionally called "Proto-Canaanite" before c. 1050 BCE.[8] The oldest text in Phoenician script is an inscription on the sarcophagus of King Ahiram c. 1000 BCE. This script is the parent script of all western alphabets. By the tenth century BCE, two other forms distinguish themselves, Canaanite and Aramaic. The Aramaic gave rise to the Hebrew script.[23]

The South Arabian alphabet, a sister script to the Phoenician alphabet, is the script from which the Ge'ez alphabet, an abugida, a writing system where consonant-vowel sequences are written as units, which was used around the horn of Africa, descended. Vowel-less alphabets are called abjads, currently exemplified in others such as Arabic, Hebrew, and Syriac. The omission of vowels was not always a satisfactory solution due to the need of preserving sacred texts. "Weak" consonants are used to indicate vowels. These letters have a dual function since they can also be used as pure consonants.[24][25]

The Phoenician script was spread across the Mediterranean by the Phoenicians.[8] The Greek Alphabet was the first alphabet in which vowels have independent letter forms separate from those of consonants. The Greeks chose letters representing sounds that did not exist in Phoenician to represent vowels. The syllabical Linear B, a script that was used by the Mycenaean Greeks from the 16th century BCE, had 87 symbols, including five vowels. In its early years, there were many variants of the Greek alphabet, causing many different alphabets to evolve from it.[27]

Some adaptations of the Latin alphabet have ligatures, a combination of two letters make one, such as in Danish and Icelandic and in Algonquian; borrowings from other alphabets, such as the thorn in Old English and Icelandic, which came from the Futhark runes;[32] and modified existing letters, such as the eth of Old English and Icelandic, which is a modified d. Other alphabets only use a subset of the Latin alphabet, such as Hawaiian and Italian, which uses the letters j, k, x, y, and w only in foreign words.[33]

Another notable script is Elder Futhark, believed to have evolved out of one of the Old Italic alphabets. Elder Futhark gave rise to other alphabets known collectively as the Runic alphabets. The Runic alphabets were used for Germanic languages from 100 CE to the late Middle Ages, being engraved on stone and jewelry, although inscriptions found on bone and wood occasionally appear. These alphabets have since been replaced with the Latin alphabet. The exception was for decorative use, where the runes remained in use until the 20th century.[34]

The Glagolitic alphabet was the initial script of the liturgical language Old Church Slavonic and became, together with the Greek uncial script, the basis of the Cyrillic script. Cyrillic is one of the most widely used modern alphabetic scripts and is notable for its use in Slavic languages and also for other languages within the former Soviet Union. Cyrillic alphabets include Serbian, Macedonian, Bulgarian, Russian, Belarusian, and Ukrainian. The Glagolitic alphabet is believed to have been created by Saints Cyril and Methodius, while the Cyrillic alphabet was created by Clement of Ohrid, their disciple. They feature many letters that appear to have been borrowed from or influenced by Greek and Hebrew.[36]

European alphabets, especially Latin and Cyrillic, have been adapted for many languages of Asia. Arabic is also widely used, sometimes as an abjad, as with Urdu and Persian, and sometimes as a complete alphabet, as with Kurdish and Uyghur.[40][41]

Examples of present-day abjads are the Arabic and Hebrew scripts;[50] true alphabets include Latin, Cyrillic, and Korean Hangul; and abugidas, used to write Tigrinya, Amharic, Hindi, and Thai. The Canadian Aboriginal syllabics are also an abugida, rather than a syllabary, as their name would imply, because each glyph stands for a consonant and is modified by rotation to represent the following vowel. In a true syllabary, each consonant-vowel combination gets represented by a separate glyph.[51]

Thus the primary categorisation of alphabets reflects how they treat vowels. For tonal languages, further classification can be based on their treatment of tone. Though names do not yet exist to distinguish the various types. Some alphabets disregard tone entirely, especially when it does not carry a heavy functional load,[59] as in Somali and many other languages of Africa and the Americas.[60] Most commonly, tones are indicated by diacritics, which is how vowels are treated in abugidas, which is the case for Vietnamese (a true alphabet) and Thai (an abugida). In Thai, the tone is determined primarily by a consonant, with diacritics for disambiguation.[61] In the Pollard script, an abugida, vowels are indicated by diacritics. The placing of the diacritic relative to the consonant is modified to indicate the tone.[41] More rarely, a script may have separate letters for tones, as is the case for Hmong and Zhuang.[62] For many, regardless of whether letters or diacritics get used, the most common tone is not marked, just as the most common vowel is not marked in Indic abugidas. In Zhuyin, not only is one of the tones unmarked; but there is a diacritic to indicate a lack of tone, like the virama of Indic.[63]

It is unknown whether the earliest alphabets had a defined sequence. Some alphabets today, such as the Hanuno'o script, are learned one letter at a time, in no particular order, and are not used for collation where a definite order is required.[72] However, a dozen Ugaritic tablets from the fourteenth century BCE preserve the alphabet in two sequences. One, the ABCDE order later used in Phoenician, has continued with minor changes in Hebrew, Greek, Armenian, Gothic, Cyrillic, and Latin; the other, HMLQ, was used in southern Arabia and is preserved today in Ethiopic.[73] Both orders have therefore been stable for at least 3000 years.[74]

The Brahmic family of alphabets used in India uses a unique order based on phonology: The letters are arranged according to how and where the sounds get produced in the mouth. This organization is present in Southeast Asia, Tibet, Korean hangul, and even Japanese kana, which is not an alphabet.[77]

When an alphabet is adopted or developed to represent a given language, an orthography generally comes into being, providing rules for spelling words, following the principle on which alphabets get based. These rules will map letters of the alphabet to the phonemes of the spoken language.[86] In a perfectly phonemic orthography, there would be a consistent one-to-one correspondence between the letters and the phonemes so that a writer could predict the spelling of a word given its pronunciation, and a speaker would always know the pronunciation of a word given its spelling, and vice versa. However, this ideal is usually never achieved in practice. Languages can come close to it, such as Spanish and Finnish. others, such as English, deviate from it to a much larger degree.[87]

Encounter medieval and modern bestiaries, miniature and monumental books, alphabets made by Renaissance designers or generated by artificial intelligence, and abecedaries of human bodies and beachcombed rocks. Trace how the centuries-old ABC book for teaching children to read has influenced modern alphabet books and artists' books, and discover how the simple structure of the alphabet inspires works that are playful, provocative and profound.

Protein design experiments have shown that the use of specific subsets of amino acids can produce foldable proteins. This prompts the question of whether there is a minimal amino acid alphabet which could be used to fold all proteins. In this work we make an analogy between sequence patterns which produce foldable sequences and those which make it possible to detect structural homologs by aligning sequences, and use it to suggest the possible size of such a reduced alphabet. We estimate that reduced alphabets containing 10-12 letters can be used to design foldable sequences for a large number of protein families. This estimate is based on the observation that there is little loss of the information necessary to pick out structural homologs in a clustered protein sequence database when a suitable reduction of the amino acid alphabet from 20 to 10 letters is made, but that this information is rapidly degraded when further reductions in the alphabet are made. 2351a5e196