What are the Internet technologies

1. Sensing technology

Sensing technology, together with computer technology and communication, is called the three pillars of information technology. From the perspective of Internet of Things, sensor technology is an important symbol to measure a country's informatization level. As the second Hangzhou Internet of Things and sensor technology application summit forum, it will promote the rapid development of sensor industrialization in China.

2, communication technology

Communication technology, also known as communication engineering (also known as information engineering, telecommunications engineering, formerly known as long-distance communication engineering, weak current engineering) is an important branch of electronic engineering, but also one of the basic disciplines. This subject focuses on the principles and applications of information transmission and signal processing in communication. Communication engineering studies the transmission of information from the sender (source) to one or more receivers (sink) by electric pulses in the form of electromagnetic waves, sound waves or light waves.

3. Computer technology

The content of computer technology is very extensive, which can be roughly divided into computer system technology, computer device technology, computer component technology and computer assembly technology.

computer technology includes: basic principle of operation method and design of arithmetic unit, instruction system, design of central processing unit (CPU), pipeline principle and its application in CPU design, storage system, bus and input/output. Expanding materials

Using the Internet, people can not only enjoy resources, but also exchange information, keep in touch and have fun. Nowadays, many people's lives and work are inseparable from the Internet. The realization of the network makes a single and scattered computer organically connected into a system, which mainly has the following functions:

1. Sharing resources

The main function of the network is sharing resources. The resources enjoyed by * * * include software resources, hardware resources and various data resources stored in the public database. Online users can enjoy these resources in part or in whole, so that the resources in the network can exchange needed goods and cooperate with each other, thus greatly improving the utilization rate of system resources.

2. Fast transmission of information

Computer systems distributed in different regions can transmit all kinds of information in time, exchange data and send e-mails at high speed through the network, which makes people more closely connected.

3. Improve system reliability

In the network, due to the mutual cooperation and mutual backup between computers, and the use of some backup devices and some technologies such as load scheduling and data fault tolerance in the network, when a certain part of the network fails, other parts of the network can automatically take over its tasks. Therefore, compared with stand-alone systems, computer networks have higher reliability.

4. It is easy to carry out distributed processing

In the network, a relatively large problem or task can also be decomposed into several sub-problems or tasks, and distributed to different computers in the network for processing and calculation. This distributed processing ability is effective in the research and development of some major topics.

5. Integrated information service

In today's information society, individuals, offices, libraries, enterprises and schools are generating and processing a large amount of information all the time. This information may be words, numbers, images, sounds or even videos, which can be collected, processed and transmitted through the network. Therefore, integrated information service will become the basic service function of the network.

Baidu Encyclopedia-Internet technology