Tag: importance of transport system

STD and ISD are associated with telephone network.

STD: Stands for subscriber trunk dialing. It was called when subscribers used to make long distance calls without operators assistance. But these days we hardly hear this as calling became very easy with introduction of new advanced networks.

ISD: Stands for International subscriber dialing. This term is used when calls are made out of the country.

Post offices in India have unique identification number for safe delivery of mail called PIN. PIN stands for Postal Index Number. This post code system is very much essential in India for safe and easy delivery. It is a six digit number.

Communication system refers to the channels by which exchange of ideas, information, news and views takes place between different individuals, groups and institutions.Therefore radio,email and mobile are all means of communication.

The largest number of newspapers published in the country are in Hindi, followed by English and Urdu.

The early postal system was used only for official purposes.

A.  Hindi

B. Roadways

Trails and footpaths long were the only means of communication in the Himalayas. Although those continue to be important, especially in the more remote locations, road transport now has made the Himalayas accessible from both north and south. In Nepal an east-west highway stretches through the Tarai lowlands, connecting roads that penetrate into many of the country’s mountain valleys.

The name of this satellite was intelset. It was niknamed as early bird. It was launched on April 6, 1965. It was built by space and communication group of Hughes aircraft company. It was the first communicational satellite launched in geosynchronous orbit. Hence it is an geostationary satellite.