If you rub your kitten under the ear, it will make a purring sound. Do you know why? Cats purr to let you know that they are feeling good! Sometimes, 
though, when they are hurt, they purr to comfort themselves.
In short, purring is a cat’s way of communicating, and when a healthy cat purrs, it is a sign that it is happy and at peace.
A special kind of postal system, which existed in the princely states of Travancore and Cochin, in Kerala, was known as the ‘Anchel’. It was
introduced by a British officer Colonel John Monroe in 1811. He was the Resident of the English East India Company in Travancore and their political agent in Cochin. He was also the Dewan of Travancore State. In the beginning, the Anchel service was used to carry only royal implements, government letters, and flowers as offering to the Sree Padmanbhas swamy Temple at Thiruvananthapuram, owned by royal family of Travancore. Later, the system was opened to the public for a fee of one chakram (copper coin used in Travancore. One rupee was equal to 28 chakrams).
The Anchel office was headed by an ‘Anchel Pillai’ (the post master). Each Anchel sepoy had to carry the postal articles for a fixed distance, and then hand it over to another person. It was like a relay race.
The Anchel sepoy used to run with a metal rod fixed with bells, in his hand. The rule was that when people heard the sound of these bells they had to make way for him. Postal runners were allowed to occupy the centre of the road, and any obstruction made to the postal runners was considered a serious offence.
The Anchel system continued even after the Travancore and Cochin states were brought together to form the Travancore Cochin States in 1949. In 1951, the department of Anchel was merged with the Central Government’s Postal Department
How does the letter that you send reach its destination? In early days, mail was carried by riders on horseback. Sometimes, boats and carriages 
would also carry parcels and letters. Fees had to be paid in person to the carrier, both by the person sending the mail, and the person receiving it.
In 1858, letter boxes were introduced ob streets. People did not have to go to the post office to mail their letters or pay fees. Free delivery of service was also started by 1863. Letters and parcels were carried by train to different cities and later on, to villages in rural areas as well. The coming of railways really increased the efficiency of the postal systems, and made delivery much faster. Today, railroads, automobiles, and airplanes are all used by the Post Office to bring your mail to you as fast as possible.
The Pony Express was a fast mail service crossing the North American continent from the Missouri River to the Pacific coast. Messages were
carried on horse-back relay across the plains, deserts, and mountains of the Western United States. Compared to earlier delivery services, the Pony Express was very fast.
In 1861, telegraph wires connected New York and San Francisco, and the Pony express riders went out of business. But their courage and determination to deliver messages through rain and snow, sleet and ice, over the toughest mountain trials and harshest desert have become legendary.
Today, when you want to send your friend a message, you just send a letter. But 3000 years ago, King Solomon and the Queen of Sheba 
exchanged messages by carrier pigeons. These are specially trained pigeons which will find their way back home when they are released. The Egyptians and the Persians first used carrier pigeons 3,000 years ago. They also were used to proclaim the winner of the Olympics.
Carrier pigeons served many purposes during the war, racing through the skies with airplanes, or even being fitted with cameras to take pictures of enemy positions. But one of the most important roles they served was as messengers. First an important message could be written on a piece of paper. Then, that paper neatly folded and secured in a small canister attached to a pigeon’s leg. Once the pigeon was released, it would try to fly to its home back behind the lines, where the message would be read and transmitted to the proper
Probably the most famous of all the carrier pigeons was one named Cher Ami, two French words meaning ‘Dear Friend’. Cher Ami flew 12 important missions to deliver messages. Perhaps the most important message he carried was the one that saved the lives of over 200 American soldiers, though he was badly wounded by enemy fire.
Computers play an important role in communication. Large companies use a network of computers to run their business. When people cannot meet in 
person to discuss matters, they can use video conferencing to share ideas even if they live in different continents. Video conference is a system where computer networks, telephones and video cameras are used to let people see and talk to each E-mail is also an important tool of communication if you have a computer and an internet connection. E-mail is nothing more than sending and receiving messages through your computer. People use e-mail for business, to keep in touch with friends and relatives, and to work on a project with someone a hundred kilometres away. The internet is also used for communicating in chat rooms and newsgroups. You can chat with a friend who is far away by typing or even speaking to him as you would do with a New ways of using computers for communication are being developed at a fast pace. In addition to using videophones to speak to, and see people for way, cars can now find routes to avoid traffic jams, and even give you directions to reach a particular place. ships and trains, planes and spaceships, all depend on computers in one way or the other
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