Question: How many code exist in baudot code?
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What is Baudot Code
The Baudot code is a character set invented by Émile Baudot. It was used as teleprinter code until the ASCII or EBCDIC was developed. 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. The symbol rate measurement is known as baud, and is derived from the same name.
How many codes Baudot can represent?
Baudot code used 5 binary digits to represent a character or control signal. Because we can have 5 ^ 2 codes possible with 5 bits, Baudot code could accommodate only 32 codes which is not enough even for the 26 letters A to Z and the ten digits.
Baudot Code as Patented in 1988
To get round this, a teleprinter operated by the Baudot code has a shift lock in the manner of a typewriter. This locks 26 "keys", i.e. bit combinations, into one of two modes.
In the alphabetic mode they print the letters A to Z. In the numeric mode some of these bit combinations print the ten digits 0 to 9 and various punctuation marks while the remainder operate certain functions such as line feed, carriage return and sounding a bell. The effect of the remaining 6 bit combinations is not affected by the shift lock. Two of these six are used to switch the shift lock between the two modes.
In this way the 5-bit code conveys 58 different signals (26 times 2, plus 6).
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