What is the specific information technology subject in Heyuan teacher recruitment examination? Can you be more detailed?

In the teacher recruitment examination in Heyuan, the concept, characteristics, virtual reality technology, artificial intelligence technology, composition of computer system, working principle of computer and so on are examined in detail.

1. The concept of Information

Information is the sound and message transmitted by signals such as language, characters, graphics and images, which reflects the attributes, states and dynamics of everything.

Information is different from message, which is just the shell of information, and information is the core of the message; Information is different from signal, which is the carrier of information, and information is the content carried by signal; Information is different from data, which is a form of recording information.

2. Features of information

Universality, dependence, value, timeliness, transitivity, enjoyment and authenticity.

3. Virtual Reality technology

Virtual reality (VR) technology is a kind of simulation technology with computer technology as the core. It uses computers to generate a lifelike virtual environment with integrated vision, hearing and touch. Users can interact with the objects in the virtual environment in a natural way with the help of necessary equipment, thus generating feelings and experiences equivalent to the real environment. The basic characteristics are as follows: immersion, interaction and conception.

4, Artificial Intelligence technology

Artificial intelligence (AI for short) refers to the use of computers to simulate human thinking, feeling and behavior. It is a new technical science to study and develop theories, methods, technologies and application systems for simulating, extending and expanding human intelligence.

The application fields include robotics, machine translation, machine proof, intelligent agent, pattern recognition, natural language understanding, machine game, expert system, machine learning and many other fields.

5. Composition of computer system

6. Working principle of computer

Feng? Neumann, known as the father of computer, put forward the design idea of "stored program and program control", which was called Feng? The working principle of Neumann computer, the design idea points out:

① The computer system consists of five components: arithmetic unit, memory, controller, input device and output device.

② The computer uses binary to represent data and instructions.

③ adopting stored program and program control technology (the program is stored in the main memory in advance, and the computer can automatically take out the instructions one by one and execute them without human intervention).

Extended materials:

Memorizing skills of key knowledge of information technology discipline in Heyuan teacher recruitment examination:

First, the first word memorization method

The first word memorization method refers to the method of extracting the first words of each sentence in the memory content, so as to arrange and combine them in a certain order, so as to use the formula memorization method.

ii. tabular memory method

tabular memory method refers to listing all knowledge points in a certain order in the form of tables and charts, which is a common memory strategy for distinguishing and understanding memorizing materials.

third, keyword extraction method

keyword extraction method refers to a method of selecting representative words, languages and words from knowledge points for extraction during memory, so as to carry out memory.

four, the line-by-line memory method

The line-by-line memory method refers to the method of extracting concise key provisions when memorizing the memory contents, so as to clearly arrange the provisions and achieve the memory of these contents.

v. carding frame memory method

carding frame method refers to a method that systematically combs the frame structure of knowledge points according to the logical relationship between the knowledge points themselves, so as to remember them in the order of logical development. This method needs to understand the knowledge points accurately and systematically.

6. homophonic memory method

homophonic memory method refers to extracting words from knowledge points and replacing them with similar pronunciations or words, so as to make the memory formula smoother and easier to understand and remember.

VII. Associative memory method

Associative memory method refers to integrating and understanding the memorized content, and associating the integrated content. The associative object can be something that is common and easy to understand.