Skip to main content

What is data transmission mode? How does data transmission mode work?

Data transmission mode

The mode of data movement depends on the direction of data movement. Data transmission modes are generally divided into three categories; namely-


(i) Simplex mode or unidirectional mode,

(ii) Half-duplex mode or meaning duplex mode,

(iii) Full-duplex mode or pre-duplex mode or duplex mode.


Simplex: The data transmission mode in which data is transmitted only in one direction is called simplex transmission mode. In this method data can be transmitted only in one direction. That is, the sending computer can send data to the receiving computer. But the receiving computer can never send the data to the sending computer. The first computer can only send data to the second computer. But the second computer cannot send data to the first computer.


Half Duplex Mode: At this speed data can be sent in both directions but not simultaneously. When the sending computer sends data to the receiving computer, the receiving computer only receives the data. But the sender cannot send the data to the computer. Data can be sent from one computer to the second computer or from the second computer to the first computer. But cannot be sent together. Example – Walkie talkie system.


Full-duplex mode : In this method, data can be sent simultaneously in both directions. That is, both the sending and receiving computer can understand the start and end of the signal bit. The method for synchronizing different bits while sending a signal is called bit synchronization.




Data transmission speed:

The rate at which data is transferred from one computer to another or from one place to another is called data transmission speed. Data transmission speed is also called Bandwidth. Bandwidth is usually measured in Bits per Second (bps). That is, the amount of bits transmitted per second is called bps or Bandwidth. Based on data transmission speed, data communication speed can be divided into three categories, namely-

(i) Narrow Band, 

(ii) Voice Band,

(iii) Broadband.


Narrow Band: The speed of data movement of narrow band ranges from 45 to 300 Bit per Second (bps). Narrow band is used for slow data data communication.

Voice Band : The speed of data movement of voice band is up to 9600 bps. It is commonly used more in television lines. However, in computer data communication, the voice band is used to transfer data from the computer to the printer.

Broadband: The data movement speed of this band is very high from at least 1 Mbps. Broadband is generally used in fiber optic cable, DSL (Digital Satellite Link), radio link. Currently, this band is used for data transfer in computer networking processes.


Labels:

Comments

Post a Comment

Popular posts from this blog

What are the things to consider when buying a WiFi or broadband router for home, office, park and restaurant ?

Today we talk about What are the things to consider when buying a WiFi or broadband router for home, office, park and restaurant .I never like huge introduction about any topic . I always like very shortly introduce any-things to my viewers without any-type boring .So let's began the leanrning :- 1. Decide in advance how many devices you will use. 2. Decide how much space you need coverage. 3. Understand the structure of your home. WiFi signals become weak to penetrate the walls. That is why good coverage is not available. If you have a lot of walls in your house and you want to get coverage in the whole house, then you need a router with high power and wall penetration feature. 4. Decide what features you need in addition to the internet connection. Such as: - 4.1 3G 4G Modem Support- There are many routers that can use the modem. Those routers have a USB port and a one port so that broadband lines can be used. But remember that the modem must have the ability to auto-connect. Not...
Post a Comment
Read more

What is transmission media? Introduction to different types of data transmission cables

Transmission media: When a PC communicates or wants to communicate with another PC, it has to take the help of some transmission media. The most commonly used media in the network are twisted pair cable, coaxial cable, fiber optic cable. Nowadays, the use of optical fiber is increasing greatly. Radio wave, microwave and infrared technologies are prominent among wireless media. Among these mediums, optical fiber has the highest data transfer speed. The type of medium used in a network depends on the type and location of that network. The connection system for exchanging information between the sender and the remote receiving end is called a channel. The means or methods used to implement the channel are called media. such as-- (i) Cable or wire. (ii) Common telephone lines. (ii) Radio waves. (iv) Microwave. (v) Geo-satellite systems etc. Cable or Wire: Cable is an important medium in data communication. Cables are generally used for data transfer over short range networking such as LAN...
Post a Comment
Read more

What should the processor look at?

The things that we all should keep an eye on are the processor or not; 1. Clock speed 2. Number of course 3. cache memory 4. FBS 1. Clock Speed: It is also called GH2. All processors are written on. Clock speed means how fast your computer can work. That's what this signal means. The speed of the processor is known through this clock speed, how fast the calculation can be done. 2. Number of Cores: The more cores the processor has, the faster the processor can work. If I give an example to explain the matter, I hope you can understand it very easily. Suppose if a person had many hands, then he could do many things at the same time. That is, if we go to the market and buy a smartphone, then we will see what the configurations of the phone are. If we look closely at the configuration of the smartphone, we will see that Dual Core Processor, Quad Core Processor, Octa core processor, Hexa core processor, Deca core processor. This means that the dual core processor has two arms or cores, ...
Post a Comment
Read more