In the information age, the security of data has become increasingly important. Whether it is personal data, corporate secrets, or bank transaction records, ensuring they are not maliciously accessed or tampered with is a concern for everyone. Cryptography, as the cornerstone of data security, plays a crucial role. Today, we will explore a powerful and … Read more
Hello everyone, I am QiQi AI! Today, let’s explore the world of data encryption in Python. Imagine that PyCrypto is like a magical key🔑 that can turn your data into ciphertext that only specific people can understand. It’s like the password games we played in childhood, but this time it’s real professional encryption technology! Basic … Read more
If you are still using GSM phones based on earlier signal standards, you better be a bit cautious while using your phone. According to recent reports from foreign media, security researchers have found that they only need to use three NVIDIA GeForce GTX690 graphics cards (GPU) to crack the GSM A5 encryption algorithm. What Is … Read more
Introduction by AliMei What processes does an SQL statement go through during execution? As a newcomer to big data development, the author has organized the entire process of SQL task execution. This article shares the author’s learning and insights for everyone’s reference. As a new developer in big data, I am curious about the entire … Read more
Introduction to ADC The STM32F103 series has 3 ADCs with a precision of 12 bits, and each ADC can have up to 16 external channels. ADC1 and ADC2 both have 16 external channels, while ADC3 generally has 8 external channels. The A/D conversion of each channel can be executed in single, continuous, scan, or interrupt … Read more
This article will take you through the core concepts of Real-Time Operating Systems (RTOS) in a straightforward manner, gradually guiding you to create a small yet fully functional RTOS. We will cover the basic components of RTOS, task scheduling, portability, and task synchronization mechanisms. 1. Basic Components of RTOS A minimal RTOS typically includes the … Read more
Simulating Traffic Light Control System: Easy PLC Programming Today, we are going to discuss how to use Siemens PLC to create a simulated traffic light control system. This project is particularly suitable for practice and can teach you many basic skills. Traffic light control seems simple, but there are actually many logical details, especially regarding … Read more
Overall Reading 1400 Words Reading Time 5 Minutes Prerequisite Knowledge Difference Between Preemptive and Non-Preemptive Scheduling? Non-Preemptive Scheduling: Once a process starts executing, the operating system will not allocate the CPU to other processes until the process voluntarily releases it. Preemptive Scheduling: The operating system can forcibly pause the execution of a running process and … Read more
Seasoning companies have many channels, among which the catering channel occupies about 50% of the market share. So in the current market environment, how can seasoning companies achieve sustainable growth in the catering channel? 01 Leverage Distributor Power Maintain and Expand Catering Terminals Knowing that the catering channel has a large market share, who should … Read more
Embedded operating systems sound quite impressive, but in fact, they are just a streamlined version of an operating system, specially tailored for embedded devices. Today, let’s talk about a particularly interesting embedded operating system – the one based on priority cooperative scheduling. It’s a bit like a well-organized small team, where each member has their … Read more