INFORMATION EVOLUTION

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Evolution of information and communication technology (ICT) has been a gradual incidence. Knowledge or information is very powerful, and one of the major ways of acquiring knowledge is through communication.
Information and communication technology has evolved through the following stages:
1.         Invention of printing.
2.         Invention of radio and television.
3.         Invention of computer.
4. The linking up of computer with information and communication Technology(ICT).
INVENTION OF PRINITING
Before printing was invented, the Number of manuscript books in Europe counted in thousands. By 1500, after about fifty years of printing, there were more than Nine million books. The widely Competetive period of printing went Well into the 16th century. The intro
Uction of printing with Gutenbery (A goldsmith in Mainz) early examples were disseminated with a combination of missionary zeal and heightened Commercial value. By 1500 there Were presses in most parts of Europe, and later other parts of the world Printing first began in Russia in 1552, with the help of a printer from Copenhagen. Over the next couple Of centuries, pamphlets, newspapers And magazines began to flourish.
During the 18th century, the Book trade in American colonies began to flourish. Printing has begun in 1639In Cambridge, Massachusetts, followed by Boston, Philadelphia and New York City.
However it was difficult for colonial printers to produce large works because of a shortage type. Books in American colonies were sold in a variety of ways-by subscription, by printers, by hawkers and through selected shops. As books became cheaper to print, it became worthwhile for the ordinary man to learn how to read.
With development in the nineteenth and twentieth centuries of mechanical typesetting and power presses, printed materials became cheaper still so much that by the 1940s one could buy a paperback book with the wages of a labourer’s half-hour of work.
THE INVENTION OF RADIO
Radio is the electronic appliance that we listen to. It owes its development to the inventions of telegraph and telephone. Radio technology began as wireless telegraphy. It started with the discovery of “Radio waves” electromagnetic waves that have the capacity to transmit music, speech, pictures and other data invisibly through the air.
James Clerk Maxwell, a Scottish Physicist in 1860’s predicted the existence of radio waves, and in 1886, a German Physicist, Heinrich Rudolph Hertz demonstrated that rapid variations of electric current could be projected into space in the form of radio waves. An American Dentist in 1866 demonstrated wireless telegraphy. Loomsis made an instance of wireless aerial communication. Guglielmo Marocni, an Italian inventor, proved the feasibility of radio communication.
Radio-telegraphy is the sending by radio waves the same dot telegraph service.
The Alexanderson high-frequency alternator and the De forest tube resolved many early technical problems of interference in the radio-telegraph transmitter. Lee De forest (in 1900s) amplified the radio frequency signal picked up by the antenna before application to the receiver detector, thus utilizing weaker signals. De forest was also the person that first used the work with the invention of amplitude-modulated AM radio that covers a multitude of radio stations.
THE INVENTION OF TELEVISION
In 1922, Philo T.Farnsworth nursed the idea of building a Television. On January 7, 1927, Philo T. Farnsworth and Cliff Gardiner tested their “Image Dissector” successfully. The image was simply a black horizontal line painted on a glass slide.
The idea Philo T. Farnsworth had conceived at the age of fourteen had worked. But to become the television we have today, there were years of more work as many more scientists and investors came into it.
Other companies or groups that contributed were the radio corporation of America (RCA) that made the Iconoscope and the Orthicon tube which became a part of the workings of the television. Also was the international Telephone and Telegraph (IT and T) company. They were able to produce more than two hundred horizontal lines. In 1949, the demand for television did skyrocket.
Techteazer Tv.jpg
INVENTION OF COMPUTER
The invention of computer started around 2000 years ago. The computer started out as an abacus. An abacus is a rack made of wood with two wires running parallel to each other. On the wires there are beads. By moving the beads anyone can solve simple math problems. Next, there was the Astrolabe, used for navigating.

The first digital computer was invented in 1642 by Blaise pascal. It consisted of numbers entered in dials but, it could only add. However, in 1671 a computer was invented that was eventually built in 1694. The man to credit for this invention is Gottfried Wilhelm Von Leibniz. Unlike Pascal’s, Leibniz’s could add and multiply. Leibniz also invented the stepped gear mechanism for the addend digit introduction, and to this day it is still being used. Other our more recent computers were invented which were additional works on the ones that existed.

LINKING UP COMPUTER WITH INFORMATION AND COMMUNICATION TECHNOLOGY (ICT)
Information communication Technology (ICT) is an umbrella term that includes all the technologies for the communication of information. It includes all media to record information, and also technology for broadcasting information. By linking up of computers with ICT, it has become a hub for communicating information. A personal computer (PC) connected to the internet has become a vital tool for communication.
The Internet has granted many opportunities, from finding out information to conducting communications globally (e.g. through e-mail, voice mail, Skype, e-commerce) or generally just having fun through online chart or instant messages. It is used in teaching, training, e- learning, communicating, and other related aspects.

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