1801
Invented by Joseph Marie Jacquard, an engineer and architect in Lyon, France, punch cards laid the ground for automatic information processing. For the first time information was stored in binary format on perforated cardboard cards. In 1890 Hermann Hollerith used Joseph-Marie Jacquard's punch card technology to process statistical data collected during the US census in 1890, thus speeding up US census data analysis from eight to three years. Hollerith's application of Jacquard's invention was used for programming computers and data processing until electronic data processing was introduced in the 1960's. - As with
Paper tapes are a medium similar to Jacquard's punch cards. In 1857 Sir Charles Wheatstone used them for the preparation, storage, and transmission of data for the first time. Through paper tapes telegraph messages could be stored, prepared off-line and sent ten times quicker (up to 400 words per minute). Later similar paper tapes were used for programming computers.
1809
With Samuel Thomas Soemmering's invention of the electrical telegraph the telegraphic transmission of messages was no longer tied to visibility, as it was the case with smoke and light signals networks. Economical and reliable, the electric telegraph became the state-of-the-art communication system for fast data transmissions, even over long distances.
Click
1861
The telephone was not invented by Alexander Graham Bell, as is widely held, but by Philipp Reiss, a German teacher. When he demonstrated his invention to important German professors in 1861, it was not enthusiastically greeted. Because of this dismissal, he was not given any financial support for further development.
And here Bell comes in: In 1876 he successfully filed a patent for the telephone. Soon afterwards he established the first telephone company.
1866
First functional underwater telegraph cable is laid across the Atlantic
1895
Invention of the wireless telegraph
TEXTBLOCK 1/1 // URL: http://world-information.org/wio/infostructure/100437611796/100438659897
Communications satellites are relay stations for radio signals and provide reliable and distance-independent high-speed connections even at remote locations without high-bandwidth infrastructure.
On point-to-point transmission, the transmission method originally employed on, satellites face increasing competition from
In the future, satellites will become stronger, cheaper and their orbits will be lower; their services might become as common as satellite TV is today.
For more information about satellites, see How Satellites Work (