What knowledge does the host computer need to have?

PC development requires a wide range of knowledge. The following are some key areas of knowledge:

1. Basic computer knowledge

PC development requires basic computer knowledge, including Computer architecture, operating systems, computer networks, etc. This knowledge will help developers better understand the working principle and implementation of the host computer software.

2. Programming language knowledge

PC development requires mastering at least one programming language. Common choices include C, Java, Python, etc. For different development tasks and needs, appropriate programming languages ​​and development tools need to be selected. In addition, you also need to understand basic concepts such as programming language syntax, data types, and control structures, as well as commonly used algorithms and data structures.

3. Interface design knowledge

PC development requires basic knowledge of interface design, including user interface design principles, color matching, font selection, icon and button design, etc. Good interface design can improve user experience and make operations more convenient and efficient.

4. Communication protocol knowledge

The communication between the host computer and the slave computer needs to follow certain protocols and specifications. Common communication protocols include serial communication protocols (such as RS-232, RS -485), network communication protocols (such as TCP/IP, UDP), etc. Host computer development needs to understand the working principles and implementation methods of these communication protocols in order to correctly exchange data with the lower computer.

5. Data processing knowledge

The upper computer needs to process the data returned from the lower computer and the data input by the user. Therefore, host computer development needs to understand the basic knowledge of data processing, including data types, data structures, data cleaning, data visualization, etc. In addition, you also need to understand some commonly used data processing algorithms and tools, such as Excel, SQL, etc.

6. System integration knowledge

The host computer usually needs to exchange and control data with multiple slave computers, so it is necessary to understand the basic knowledge of system integration, including system architecture design, interface specifications, data Synchronization etc. In addition, you also need to understand some commonly used system integration tools and technologies, such as OPC UA, MQTT, etc.

7. Testing and maintenance knowledge

During the development and actual operation of PC software, various testing and maintenance work are required, including unit testing, functional testing, performance testing, etc. Therefore, PC development needs to understand the basic knowledge of testing and maintenance, including test plan formulation, test case writing, debugging skills, etc. In addition, you also need to understand some commonly used testing tools and technologies, such as JUnit, Postman, etc.

8. Security knowledge

The host computer software needs to protect the security of user data and system, so it is necessary to understand the basic knowledge of security, including network security, data encryption, identity authentication, etc. In addition, you also need to understand some common security technologies and tools, such as firewalls, intrusion detection systems (IDS), etc.

Summary: PC development requires a variety of knowledge, including basic computer knowledge, programming language knowledge, interface design knowledge, communication protocol knowledge, data processing knowledge, system integration knowledge, testing and maintenance knowledge, and security knowledge . This knowledge will help developers better understand and implement the functional and performance requirements of the host computer software, and improve the reliability and security of the system.

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