Information technology English means information industry. It covers a wide range. Industries that deal with or apply information technology, such as banking, consulting, hospitals, publishing, manufacturing, movies, etc. , depending on information and information systems. Computer software and hardware, Internet and other network environments that connect the above items naturally form the ubiquitous IT industry. & nbsp
At present, there are various ways to divide information technology industries, among which the definition of the US Department of Commerce is clear and reasonable, and all industries in the national economy are divided into information technology industries and non-information technology production industries. Among them, IT industry is further divided into IT production industry and IT use industry. IT production industry includes computer hardware industry, communication equipment industry, software, computer and communication service industry. As for the IT usage industry, almost all industries are involved. Among them, the service industry uses a large proportion. It can be seen that the information technology industry not only refers to the communication industry, but also includes the hardware and software industries, including not only the manufacturing industry, but also related service industries, so the communication manufacturing industry is only a part of the information technology industry, not the whole information technology industry.
IT = information technology information technology actually has
The first layer is hardware, which mainly refers to the host computer and network communication equipment used for data storage, processing and transmission.
The second layer refers to all kinds of software for collecting, storing, searching, analyzing, applying and evaluating information, including business management software such as ERP (Enterprise Resource Planning), CRM (Customer Relationship Management), SCM (Supply Chain Management) and WF (Workflow) management software for strengthening process management.
The third layer refers to collection, storage, search, analysis, application, evaluation, application, evaluation and so on. , using ERP, CRM, SCM and other software to directly assist decision-making, using other decision-making analysis models and DW/DM and other technical means to further improve the analysis quality and assist decision-makers.
Some people understand that information technology combines the first two layers into one, which refers to the storage, processing and transmission of information, while the latter refers to the application of information. Some people combine the last two layers into one, which is divided into hard front and soft back. Usually, the third layer has not been paid enough attention, but in fact, only when information is effectively applied can the value of information technology be fully exerted and the goal of informatization be realized. Informatization is not an end in itself, but a good means to achieve the goal in today's era.
What are the above it occupations? Related knowledge, I hope everyone can help me!