Computer network is an organizational form in which computers are interconnected through connection media (such as network cables, optical fibers, etc.), communicate data according to network protocols, and realize resource sharing. Computer networks originated in the United States in the 1960s. They were originally used for military communications and then gradually entered civilian use. After just 40 years of continuous development and improvement, they are now widely used in various fields and are moving forward at a high speed. In the near future, we will see a new era filled with virtuality. In this virtual era, people's work and lifestyle will be greatly changed. At that time, we will go on virtual trips, go to virtual universities, work in virtual offices, conduct virtual driving tests, etc. Regarding the prospects for the development of computer networks, I have the following views:
The communication volume of the global Internet will exceed the communication volume between people. The Internet is evolving into a more intelligent, high-IQ network, becoming a high-level mediator between people and information. The personal website copy function will continuously predict people's information needs and preferences. Users can filter and filter information that is not relevant to them through this function, and present the required information in the best format. At the same time, individuals and businesses will receive a wealth of personalized services. These services will be implemented by software designers on an open platform. Software-driven intelligent network technology and wireless technology will enable the network to cover every corner that people can reach, and allow people to choose the form of receiving information.
2. Although the cost of bandwidth will become low or even negligible, future network charges will be more based on the services provided rather than bandwidth. As the bandwidth bottleneck breaks through, interactive services such as video games, electronic newspapers, and magazines will become the main value of future networks.
3. In the near future, wireless networks will become more popular, among which cnet: short-range wireless networks have a promising future. The short-range wireless communication standards Zigbee and UWB (Ultra wideband) are about to be finalized. In the future, they will jointly build a short-range wireless network environment with Bluetooth. Shipments of related products including Bluetooth, Zigbee, and UWB will increase significantly. growing up. With the introduction of the 802.15 Personal Area Network (WPAN) standard by the Institute of Electrical and Electronics Engineers (IEEE), the development trend of a new generation of short-distance wireless communications has gradually been determined. In addition to Bluetooth (802.15.1), Zigbee (802.15.4) and UWB (802.15.3a) standards will also be passed this year or early next year. In the future, Zigbee and UWB will enter the short-distance wireless network environment with their own different characteristics, such as speed and price.
The rapid development of computer networks has brought many conveniences, but at the same time it has also brought security issues. After more than 20 years of development, network security has become an interdisciplinary comprehensive science. It covers many fields such as communication technology, network technology, computer software, hardware design technology, cryptography, network security and computer security technology. These areas work together to protect computer systems and data from the threats of malicious attacks and unauthorized access. Communication technology plays an important role in network security, ensuring the security of data during transmission. The development of network technology has also provided more protection methods for network security, such as firewalls and intrusion detection systems. Computer software
Network security is based on cryptography and network security protocols. Cryptography is the core of network security, using cryptography technology to encrypt information for transmission, encrypted storage, data integrity authentication, and user identity authentication. Cryptographic technology is more reliable than traditional access control and authorization technologies. Encryption algorithms are formulas and rules that specify methods of transformation between plaintext and ciphertext. Due to the disclosure of encryption algorithms and the development of decryption technology, coupled with developed countries' export restrictions on key encryption algorithms, countries are actively developing and designing new encryption algorithms and encryption mechanisms.
From a technical perspective, network security protection mainly involves two aspects: hardware and software of network equipment. Specifically, network security is achieved through the cooperation of software and hardware of network equipment. However, since network security is a value-added service, people often find that the processing speed of software becomes the bottleneck of the network. Therefore, implementing network security cryptographic algorithms and security protocols in hardware to achieve high-speed security processing will be one of the main directions for the development of network security.
While security technology continues to develop, comprehensively strengthening the application of security technology is also an important part of the development of network security. Because even if there is a theoretical basis for network security, without a deep understanding of network security and its extensive application in the network, it is useless to talk about network security. At the same time, network security is not just a firewall, nor is it a simple stack of anti-virus, intrusion detection, firewall, identity authentication, encryption and other products, but includes a relatively complete and systematic security from system to application, from equipment to service. Organic combination of series products.
In the future development process, the Internet will no longer be just a tool, nor a technology patent used by a few people, but a culture and lifestyle integrated into all fields of society.
1. Portalization: including level portals, such as group-company-department three-level office portals. The entrances of each office portal are unified but relatively independent, and information and processes that require collaboration can also be interconnected. It also includes the unification of internal and external portals, such as the integration of OA (internal portal) and website (external portal) information.
2. Platformization: Provide an easy-to-use, open collaborative application platform. Customers can easily build personalized functional modules and easily integrate internal and external processes, data, personnel, and permissions of the system without the need for Encoding, or very little encoding.
3. Mobility: In the future, OA systems will spend less and less time operating on PCs. People will use more mobile terminals such as mobile phones to operate OA, including sending and receiving messages, approving files, uploading and downloading, and arranging schedules. etc., the compatibility of OA system on mobile phones is continuing to mature.
4. Businessization: OA system will no longer be a general-purpose software purely used for administrative offices, but will be increasingly integrated with customers’ business management. The carrier of the combination lies in process management and task management. However, OA does not manage specific business data like ERP, but focuses on business collaboration process management.
The above is the detailed content of What are the development prospects of computer networks?. For more information, please follow other related articles on the PHP Chinese website!
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
