Describe in detail the several ways in which data is transmitted and the form in which data is trans

Infrared, Bluetooth, Data Cable, WiFi, Card Reader.

At the physical layer of the OSI RM protocol model, the basic unit of data transmission is bits (bitstreams).

The first layer of the OSI model is the physical layer (physical

layer), right-of-use data is routed through the large network.

Equivalent to a sequencing worker in a post office.

Transmission of data frames (data) over a local local area network (LAN

frame), which is responsible for managing the interoperability between computer communication devices and networks**. It includes pins, voltages, cable specifications, hubs, repeaters, network cards, host adapters, etc.

1. Physical layer: the transmission of the original bit stream, basic unit: (bit).

2. DatalinkLayer: Establish data link transmission of adjacent nodes, basic unit: (frame frame).

3. Network layer

packet).

4. Transport layer transport

layer: Regular data transfer, for connection or connection-free, base unit: (segment).

5. Session at the session level

layer: Establish a conversational relationship.

6. Presentation of the presentation layer

layer: a unified data transmission format.

layer: provides a service interface for user applications.

Summary. What are the main ways of data transmission, glad for your question: data transmission is based on signal transmission, and data transmission is divided into two ways: baseband transmission and frequency band transmission.

1) Baseband transmission: The frequency band inherent in the digital pulse signal generated by a computer or digital terminal equipment is called the baseband. Baseband transmission refers to the method of directly transmitting digital signals on digital communication channels using baseband signals.

2) Frequency band transmission: Frequency band transmission refers to the way in which an analog signal of a certain frequency range is selected as the carrier, carrying the digital signal to be transmitted, and then transmitted through the analog communication channel. In the process of frequency band transmission, the digital signal in binary form is first modulated and converted into an analog signal that can be transmitted in an analog channel (such as ** line or other transmission lines), and then the analog signal is restored to a digital signal through demodulation at the receiving end.

What are the main ways of data transfer?

What are the main ways of data transmission, glad for your question: data transmission is based on signal transmission, and data transmission is divided into two ways: baseband transmission and frequency band transmission. (1) Baseband transmission:

The frequency band inherent to a digital pulse signal generated by a computer or digital terminal device is called the baseband. Baseband transmission refers to the method of directly transmitting digital signals on digital communication channels using baseband signals. (2) Frequency band transmission:

Frequency band transmission refers to the method of selecting an analog signal in a certain frequency range as the carrier, carrying the digital signal to be transmitted, and then transmitting it through an analog communication channel. In the process of frequency band transmission, the digital signal in binary form is first modulated and converted into an analog signal that can be transmitted in an analog channel (such as ** line or other transmission lines), and then the analog signal is restored to a digital signal through demodulation at the receiving end.

What is Basen.

Carry system: is the base system, is a kind of carry method prescribed by people, for any kind of base system, it means that the number operation on a certain position is every x into one, binary is every two into one, octal is every eight into one, decimal is every ten into one, hexadecimal is every sixteen into one.

1. Bluetooth transmission.

Advantages: Support voice and data transmission, using radio technology, large transmission range, can penetrate different substances and spread between substances, low power consumption.

Disadvantages: Slow transfer speed.

2. Infrared interface transmission.

Advantages: It supports data exchange between mobile phones and computers and other digital devices, and it is low-cost, convenient to connect, and simple to use.

Disadvantages: The communication distance is short, it cannot be moved during the communication process, and the communication is interrupted in case of obstacles.

3. Wireless transmission.

Advantages: long communication distance, strong anti-interference and strong vibrillation, and flexible networking.

Disadvantages: Internet connection is required.

1. Bluetooth transmission.

Advantages: support voice and data transmission, use radio technology, large transmission range, can penetrate and diffuse between different substances, low power consumption.

Disadvantages: Slow transfer speed.

2. Infrared interface transmission.

Advantages: It supports mobile phones and computers and other digital devices for data exchange, and it is low-cost, easy to connect, simple and easy to use.

Inferior reputation: the communication distance is short, the communication process can not be moved, and the communication is interrupted when encountering obstacles.

3. Wireless transmission.

Advantages: long communication distance, strong anti-interference ability, flexible networking.

Disadvantages: Internet connection is required.