ITA2 - définition. Qu'est-ce que ITA2
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Qu'est-ce (qui) est ITA2 - définition

PIONEERING FIVE-BIT CHARACTER ENCODINGS
ITA2 code; ITA2; MTK-2; Murray code; International Telegraph Alphabet; International Telegraph Alphabet No. 1; Murray Code; International Telegraph Alphabet No. 2; ITA1; International Telegraph Alphabet No2; Baudot networks; CCITT Telegraph Alphabet No. 2; Baudot alphabet; Western Union code; International Telegraphic Alphabet; ITA1 code; CCIT 2; CCITT 2; CCITT No. 2; CCITT-2; CCITT-1; Baudot coding; ITA-2; FIGS; LTRS; Baudot-Murray code
  • Paper tape with holes representing the "Baudot–Murray Code". Note the fully punched columns of "Delete/Letters select" codes at end of the message (on the right) which were used to cut the band easily between distinct messages. The last symbols before the fully punched columns at the end are BRASIL CR LF CR FS (word Brasil, carriage return, line feed, carriage return, shift to figures)
  • Keyboard of a [[teleprinter]] using the Baudot code (US variant), with FIGS and LTRS shift keys
  • An early "piano" Baudot keyboard
  • A four-row teletype keyboard with Roman and Cyrillic letters.
  • Table of ITA2 codes (expressed as [[hexadecimal]] numbers)
  • Weather teleprinter encoding

Baudot code         
<communications> (For etymology, see baud) A character set predating EBCDIC and used originally and primarily on {paper tape}. Use of Baudot reportedly survives in TDDs and some HAM radio applications. In Baudot, characters are expressed using five bits. Baudot uses two code sub-sets, the "letter set" (LTRS), and the "figure set" (FIGS). The FIGS character (11011) signals that the following code is to be interpreted as being in the FIGS set, until this is reset by the LTRS (11111) character. binary hex LTRS FIGS -------------------------- 00011 03 A - 11001 19 B ? 01110 0E C : 01001 09 D $ 00001 01 E 3 01101 0D F ! 11010 1A G & 10100 14 H # 00110 06 I 8 01011 0B J BELL 01111 0F K ( 10010 12 L ) 11100 1C M . 01100 0C N , 11000 18 O 9 10110 16 P 0 10111 17 Q 1 01010 0A R 4 00101 05 S ' 10000 10 T 5 00111 07 U 7 11110 1E V ; 10011 13 W 2 11101 1D X / 10101 15 Y 6 10001 11 Z " 01000 08 CR CR 00010 02 LF LF 00100 04 SP SP 11111 1F LTRS LTRS 11011 1B FIGS FIGS 00000 00 [..unused..] Where CR is carriage return, LF is linefeed, BELL is the bell, SP is space, and STOP is the stop character. Note: these bit values are often shown in inverse order, depending (presumably) which side of the paper tape you were looking at. Local implementations of Baudot may differ in the use of #, STOP, BELL, and '. (1997-01-30)
Baudot code         
The Baudot code is an early character encoding for telegraphy invented by Émile Baudot in the 1870s. It was the predecessor to the International Telegraph Alphabet No.

Wikipédia

Baudot code

The Baudot code [boˈdo] is an early character encoding for telegraphy invented by Émile Baudot in the 1870s. It was the predecessor to the International Telegraph Alphabet No. 2 (ITA2), the most common teleprinter code in use until the advent of ASCII. Each character in the alphabet is represented by a series of five bits, sent over a communication channel such as a telegraph wire or a radio signal by asynchronous serial communication. The symbol rate measurement is known as baud, and is derived from the same name.