Inventions- Teleprinter

Inventions- Teleprinter


The early telegraph had functioned by converting letters and digits into codes. The message could be deciphered only after translating the codes. Because of this we will loose a lot of time. Many attempts in overcoming this limitation had begun in the last stages of the 19th century.
The main aim of the attempts was to invent a device by which the message could be recorded on its own or the message could be recorded as it was.

The first machine capable of recording letters was invented by David E Huges, a professor in the Newyork University, 1855. In practical level , it was very difficult to operate this machine. In 1874,Emile Baudot invented the ‘plain language printing telegraph’ having a keyboard of 5 keys at the point of transmitting messages. The Baudot codes is till used in some modern teleprinters, but it was less precise and less speedy. 

In 1898, an instrument capable of perforating paper in the design of letters was made by Donald Murray of Australia.It worked according to the flow of electricity.This instrument led to the invention of the modern teleprinter that could record letters as they were.the first model of teleprinter was made in 1890’s by Freberick G Creed of Britain. But it was Charles L Krumm of America who first practiced the teleprinter. 

The teleprinter consist of a typewriter-like-keyboard for transmitting the message and a printer to receive the message. According to the flow of current, the teleprinter records the message in a paper through the printer in its receiving end.In America and Europe teleprinter became very much popular in 1920’s.By 1950’s almost all news- media in the western countries relied on teleprinter for obtaining news. When the world began to move according to the electronic technology the position of teleprinter and other such machines were superseded. The telex and computer networks began to dominate the communication field in developed countries. But it is not fully throwed away , yet it is now using in developing countries like India and in some underdeveloped countries.


Telex is the predecessor of computer network and the internet. By the system, by which the subscribers to teleprinter messages can exchange message among themselves. Government agencies of many countries used the services of telex in the fields of postal department, telegraph department and telephone department. Telex was originated in Germany the system of telex was developed for the first time by Edward Kleinschmidt,in 1914. The telex ‘revolution’ that originated in Germany had spread within a shot span of time, to America and European countries. Telex had become an important part of many developed countries, in 1930.

Messages are transmitted through telex using call numbers given to each teleprinter subscriber. Teleprinter keyboards are also used for transmitting messages through telex. The message received is first converted into electric signals. Later the messages reach the receiver through telephone line. It is again the teleprinter that receives the messages. Telex messages can be printed soon after the receipt and also can be stored for future references. Like the monitor of the computer, telex also has an instrument through which we can see the message. We can transmit upto 50 words per minute through telex. The application of telex came down by the invention of computer and -fax machine. In many countries, telex system working with the help of computers came into force. The rapid growth of computers blunted the growth of telex. Now a day, telex can be seen only in those places where the effect of computers had not been reached. 



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