What are the main categories of IT industry?

2. Software

3. integrated circuIT if you want to enter the it industry, then you must first decide to enter one of these three aspects.

Three aspects of employment orientation:

1. integrated circuit direction, which is a very professional direction, requires job seekers to have strong professional knowledge, which can be supplemented by training, and needs to be well similar to the training of university education; The employment of such talents is very narrow, but if they are employed, the salary is very high (of course, it depends on the situation of the enterprise)

2. The software direction is wider than that of integrated circuit design. A good software engineer also needs a solid mathematical foundation. Regular training can make a person who has no software foundation become a software blue collar, but it still takes considerable work and study time to become a software designer. Most of these talents are employed by software companies;

3. Network direction, which is much wider than the first two. Through training, you may gradually become a network engineer from a person who doesn't understand network technology, because network technology is a more operational technology. Employment is also much wider, because informatization is a project of the whole society. Both the government and enterprises are engaged in informatization, and they need to find suitable talents in the network to operate, manage and maintain their own network systems.

But all walks of life need different network engineers.

1. Enterprise informatization supervisor: responsible for the decision-making of informatization construction objectives and schemes and the research of informatization construction direction;

2. Engineering technicians: responsible for the design and construction of information systems, including the construction of equipment, systems, databases and application systems;

3. Operation and maintenance personnel: responsible for the operation, maintenance, management and basic development of the information system;

4. Operators and application personnel: mainly use the information system for their own work.

In the process of enterprise informatization construction and operation, enterprises will outsource the construction process to professional IT companies, so there will be no IT system engineers in general enterprises, so IT can be said that IT system engineers are concentrated in professional IT companies; After the information system is completed, an enterprise will generally have a person or a group to be responsible for the operation, maintenance and management of the information system, which is necessary for the enterprise. Moreover, in terms of cost, the enterprise will recruit someone who knows something about network equipment, network system, database, network management, network security and basic network development to be responsible for its information system. Such people are generally called network managers. This kind of people's knowledge is horizontal and multifaceted, but they are not particularly professional. If an enterprise really encounters a very professional technical problem, IT will generally let the network manager consult a professional IT company with the problem.

So from this perspective, the employment of network engineers will be much larger than that of the other two types of engineers.

1. Network equipment technology, mainly involving network hardware construction, including routers, switches, office networks, wide area networks, etc. Representatives in this regard are Cisco and Nortel; ;

2. Network operating system, mainly involving system management and network management of operating system. The representative directions are WINDOWS 2000, UNIX, LINUX, etc.

3. Network database, mainly involving databases applied to the network, such as SQL and ORACLE.

4. Network security, we should not regard network security as the security of a pair of operating systems and application systems. In fact, there are security problems in all aspects of the network, and there is no better and more comprehensive certification in China.

5. Network management, involving comprehensive management, optimization, billing, etc. Local area network and wide area network, and there is no comprehensive certification;

6. Network application development, basic development and interactive development of enterprise websites, ASP and other technologies, etc.

These six aspects are all essential factors of enterprise informatization, so if you want to supplement your knowledge, you can supplement it from these six aspects. You have to make a positioning, whether to become a comprehensive person or a professional person.