Do you know what is telecom ? If not then you must read this article today. As we know that communication is a process in which information is transferred from source to destination. Information can be anything in it such as voice, data, video, graphics, pictures etc.
All of us are also using this communication technology in our communication for the last few years. The communication in which telephone technology is used is called telecommunication. In this technology, electromagnetic devices and systems are used for long distance communication. The main examples of this are telephone, radio and television. That’s why today I thought that why should I give you complete information about what is telecom in Hindi so that you do not have doubts related to telecommunication in the coming time. So without delay let’s start and try to know more about telecommunication.
What is Telecom ?
Telecommunications is also called telecom in other words. The word telecommunication comes from a Greek prefix tele which means distant and a Latin word communicare which means to share. These two words have been linked together from which Tele-communication has originated. In this, information is exchanged between significant distances through electronic means and all types of transmission are available in it such as voice, data and video transmission. Technically speaking, it is a broad term in which a wide range of information transmitting technologies are understood such as telephones (both wired and wireless), microwave communications, fiber optics, satellites, radio and television broadcasting, internet and telegraphs.
A complete, single telecommunication circuit consists of two stations, each consisting of a transmitter and a receiver. This transmitter and receiver can be combined in any station into a single device called a transceiver. The medium of signal transmission in this can be any electrical wire or cable (which we also call “copper”), optical fiber, electromagnetic fields or light. The free space transmission and reception of data by electromagnetic fields is called wireless communications.
History of Telecom
In telecommunications, or telecom, the transmission of signals takes place over long distances. It started with the invention of telegraph in the year 1837, which was later followed by the telephone in the year 1876. Where radio broadcasts began in the late 1800s, the first television broadcasts began in the early 1900s. Talking about now, the Internet and cellular phone networks are the first among the popular forms of telecommunication.
In the earlier telecommunications transmissions, analog signals were used, which were transferred through copper wires. Whereas even today telephone and cable companies use the same lines, although almost all transmissions are now digital. For this reason, most new telecommunications wiring is done using cables that can be optimized for digital communication, such as fiber optic cables and digital phone lines.
Since both analog and digital communications are based on electrical signals, transmitted data can be received instantaneously, no matter how far they are located. It helps people to communicate quickly whether they are nearby or in any corner of the world. So whether you are watching TV, or sending an email, or talking on the phone with a friend, it makes all these tasks possible.
Types of Telecom Networks
Telecommunication takes place between two stations in its simplest form, but now it has also become very common that there are multiple transmitting and receiving stations to exchange data among themselves. This type of arrangement is called telecommunications network. The biggest example of this telecommunication network is Internet. Whereas in the smaller scale, other types are also included such as:
- Corporate and academic wide-area networks (WANs)
- Telephone networks
- Cellular networks
- Police and fire communications systems
- Taxi dispatch networks
- Amateur (ham) group of radio operators
- Broadcast networks
To transmit the data in a telecommunication circuit, the electrical signal is used according to the carrier or carrier wave. Whereas to convey information to a carrier, some form of modulation is required. The mode of modulation is broadly categorized into analog or digital.
In analog modulation, some aspects of the carrier are varied in a continuous fashion. Whereas the oldest form of analog modulation is amplitude modulation (AM), which is still used for radio broadcasting in some frequencies. At the same time, digital modulation is used in the present time. In modern telecommunications, IPs (internet protocols) are used in physical transmissions to carry data.
What is Telecom Sector
Take a moment to think about all the communications that are happening around you. Where some communications are face to face, others use some technology. In this you can think about processes like email, phone calls, text messaging, Internet browsing, file downloading. All these communications use the telecommunications system.
A telecommunications system is a collection of nodes and links to enable telecommunications. Telecommunication is a type of communication in which data is sent over a distance through electrical signals or electromagnetic waves.
Examples of telecommunications systems are telephone networks, radio broadcasting systems, computer networks and the Internet. Nodes in this system are the devices that are used to communicate, such as a telephone or a computer.
What are the components of telecommunication system
In its fundamental form, a telecommunication system consists of a transmitter to receive information and convert it into a signal, a transmission medium to carry that signal and a receiver that converts that signal. In usable information to back it up. It is applicable in all types of communication systems, whether they use computers or not.
Most modern day telecommunications systems can be correctly described by network. By the way, there are six basic components of a telecommunication network which are as follows.
1. Input and output devices, which are referred to as ‘terminals’.
They provide starting and stopping points for all communication. A telephone is an example of a terminal. In the parlance of computer networks, these devices are commonly referred to as ‘nodes’ and reside in a computer and peripheral devices.
2. Telecommunication channels, which transmit and receive data
There are many types of cables and wireless radio frequencies in it.
3. Telecommunication processors, which provide many types of control and support functions
For example, in many systems, data is converted from analog to digital form and vice versa.
4. Control software, which are responsible for controlling the activities and functionality of the network.
5. Messages that represent the actual data that is transmitted
In the case of a telephone network, these messages contain audio as well as data.
6. Protocols that specify how each type of telecommunication systems handle messages.
For example, there are GSM and 3G protocols for mobile phone communications, and TCP/IP protocols for communications in the Internet. Where earlier telecommunication systems were prepared without computers, in today’s time all systems are computerized in some way or the other.
What is the full form of ITBP Telecom?
The full form of ITBP is Indo-Tibetan Border Police (ITBP), it is a part of Indian force whose responsibility is to provide security in the border of India which is located near Tibet Autonomous Region of China. All ITBP officers and people are professionally trained Mountaineers and Skiers. Whenever any natural calamity comes in the area of Himalayas, they first face it and protect the people. Along with this, ITBP also makes its full contribution in many rescue and relief operations. Headquarters of ITBP is located in New Delhi, India.
It is the job of the officers and staff of ITBP telecom to provide assistance to the jawans with the help of all possible telecommunications. Therefore they are technically trained to operate all the devices.
What is the work of telecommunications in RRB?
There are many work of telecommunications in RRB. Therefore, RRB removes many posts of Telecom to be recruited from time to time. Let us know more about where this telecommunication is used in RRB.
In Communication of Train Control
The movement of each train is monitored by a controller which is located in the nearest divisional headquarters.
In Block Circuits
The trains running in each section (between two stations) are controlled with the help of block circuits one at a time. In this, along with oral conformation, it is also verified electrically at one time.
In optical fiber cable network
Optical Fiber Cable is laid in the track for a reliable and noise-free communication.
According to Railway Telephone Network
Railways have in-house Railway Telephone Network in which all the important offices, officials, way stations, Divisional Headquarters and Zonal Head Quarters are connected to a network.
Wireless Communication System
Drivers, Guards, Supervisors and officers from the Mechanical, Electrical and Signal & Telecom departments are provided with handheld walkie-talkies of 5 watts, which they can use according to a communication unit for moving trains and adjacent stations. Middle.
In Tele Medicine
Due to this, expertise opinion is exchanged between different hospitals in times of need.
Video conferencing facilities are there in all divisional headquarters, zonal headquarters and railway board for administrative purpose.
In Rail Net
Railway has its own data network for management purpose which is called “RAILNET”. It is used for file transfer, e-mail and public information.
To Fulfill Passenger Amenities
- Announcements are made continuously through the public address system and in the electronic display board.
- The IVRS system is used for accommodation, for the arrival and departure of trains.
- Use of call centers and integrated IVRS so that all the information can be provided to all the passengers properly.