Definition of broadcast
The concept of broadcasting can be generally defined as the process by which a specific message is sent to multiple recipients within a network, which requires a sender, a receiver, and a transmission medium for the process to take place.[١] An example of this is a radio broadcasting a signal to a large number of listeners or digital television subscribers receiving a signal broadcast by their television provider.[٢]
It can also be defined in network science as sending a set of data to a group of devices at once. One of the most famous examples of this is the ability of any device on the local area network (LAN) to send a message to all devices on the same network.[٢]
How broadcasting works
The principle of broadcasting is clear and common in its general concept, but it differs according to the field. The following is an explanation of it in the most important and famous fields:
Broadcasting in the world of networks
Each device within a single network has an address, and this address is called (IP). If one of the devices on the single network wants to broadcast, it sends a specific message to the network broadcast address, which is the address specific to the entire network and which differs from the device addresses. Here comes the role of the network devices such as the router or switch in sending the packet to the rest of the network devices.[٢]
This type of broadcast is also called one-all, because one device can send data to all other devices on the network.[٢]
Broadcasting in Wi-Fi Technology
When anyone searches through his phone for a Wi-Fi network or what is called an Internet access point around him, he finds a group of available networks, which is what Wi-Fi technology works on. When choosing the possibility of others accessing the network of a specific phone, the Wi-Fi network announces itself to all devices near it using the broadcasting process.[٢]
The broadcasting process is done by the network sending the SSID, which is its own code, to all surrounding devices so that they can access it. Here, it must be noted that a Wi-Fi network that does not broadcast its SSID is considered a hidden Wi-Fi network.[٢]
Broadcasting in Radio Technology
Radio is different from the world of networks. While data in networks is Computer It is electricity represented by (0 and 1). The data in the radio is in the form of electromagnetic waves, which is a changing electrical current that is sent through the antenna to be converted in the receiver into audible sounds.[٣]
The working principle is based on determining a specific range of frequencies on which broadcasting takes place, and from there the receiver adjusts his device to these frequencies in order to be able to listen to radio channels.[٣]
the reviewer
- ↑ “Broadcasting”, techopedia, Retrieved 27/4/2022. Edited.
- ^ A for T Th G H “Broadcast”, computerhope, Retrieved 27/4/2022. Edited.
- ^ A for “How Radio Works”, exhibits.library.gsu, Retrieved 27/4/2022. Edited.
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