In good olden days people don't know how to communicate with each other. They struggled a lot to find ways for communication. With the help of birds they used to communicate. But communicating with help of bird is not possible every time. We can see these kind of communication in olden movies. A king tries to send a message with help of bird to his princess. But it is not possible every time to use a bird for communication. So only few people used birds to send and receive messages. Sometimes this procedure worked. But most of the time it's a failure. Because we cannot guarantee or trust a bird for sending the message. The message can either reach the destination or it doesn't work sometimes.
Considering this concept some people invented this post office mechanism. In place of bird a person travels from source to destination to carry all the messages from the people. So this mechanism had been implemented by the people from the past and even now most of the people use post office to send and receive messages. In terms of post office we can call a message as post. We can send different kinds of posts with respect to post office.
With the help of stamp attached to a letter we can post our letter to the recipient. We can also send our post to different countries. It only varies in cost. There are different types to send our post with respect to post office. Some of them are register post, courier service, speed post etc. These services are used to send our post with in less time. We can also send parcels limited to some weight to the recipients. We can see post office in every cities, towns and many rural places. We can post any kind of messages except media through post. This post office were mostly used from the good olden days and this mechanism was successfully implemented from past. People also got employment with this post offices.
But at the present situation most of the people not willing to prefer post office to send post. As technology made lot of changes with help of science it changed alot. Many devices are invented to communicate with each other. We already know about telephones which made a revolution in past. With help of telephones we can communicate with each other in time. We can complete our communication in less time with help of telephones.
Even technology improved a lot and even more devices replaced telephones. Mobile phones conquered the place of telephones. Internet communication was also implemented to communicate between devices. Wireless technology was implemented in place of wired technology regarding to communication. Mobile phones are also upgraded to smart phones. Not only communications done with this smart devices but we can also send multimedia messages.
So from the good olden days we saw different ways to send and receive messages/post. Starting with a bird this communication is done wireless. I think this technology won't stop here. It goes on upgrading and updating new tech world and support to the end users.
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