Linux Touch Command 1. Introduction In Linux systems, <span>touch</span> is a simple yet powerful command-line tool primarily used to create empty files or update the access and modification timestamps of files. Although its functionality appears straightforward, by combining different options and scenarios, the <span>touch</span> command can achieve many advanced uses, especially in scripting, file management, … Read more
Click the video above to play The addition of a touchpad, a price reduction of over 1000 compared to the official Magic Keyboard, a comfortable typing experience, an enlarged soft rubber hinge area, and support for Bluetooth 5.0 make the Brydge Pro+ keyboard a more complete product compared to its predecessor, making it look even … Read more
Recently, I came across a news story about a couple in Chongqing who broke up due to a misunderstanding caused by the girl’s phone automatically connecting to the hotel Wi-Fi. The incident unfolded as follows: when the girl and her boyfriend checked into the hotel, her phone automatically connected to the hotel Wi-Fi, which had … Read more
Understanding IBSS (Ad-Hoc) Mode in Wi-Fi Networks 1. Basic Concept of IBSS In wireless networks, IBSS (Independent Basic Service Set) is a network topology defined by the IEEE 802.11 standard, also known as Ad-Hoc mode. Unlike the common Infrastructure Mode, IBSS allows multiple devices to communicate directly without the need for an Access Point (AP), … Read more
Nowadays, public places such as airports, train stations, and shopping malls commonly offer free Wi-Fi services, allowing users to easily connect to the internet and enjoy a convenient online experience. However, this convenience hides significant security risks that cannot be ignored. It is important to note that if these open networks are exploited by malicious … Read more
The Wi-Fi, NB, and 4G smoke detectors differ mainly in network technology, applicable scenarios, power consumption, and cost. Below is a comparative analysis based on core dimensions: 1. Network Technology and Coverage Wi-Fi Model Technical Principle: Relies on local Wi-Fi networks for data transmission and requires a router. Coverage Area: Limited to the Wi-Fi signal … Read more
🧐 The sudden disconnection of WiFi showing as disabled may not only be an issue with the optical modem but could also stem from the router, with various possible causes. 👉 I have compiled the reasons for WiFi displaying as disabled and the corresponding solutions. If you encounter the same issue, feel free to take … Read more
If you are in the market for replacing an old wireless router or adding a new one at home or in the office, it can be somewhat confusing. Currently, there are three wireless standards widely available on the market: Wi-Fi 6, Wi-Fi 6E, and Wi-Fi 7. The first batch of Wi-Fi 6 devices was released … Read more
1 Introduction CAN stands for Controller Area Network, which is a serial communication network capable of achieving distributed real-time control. Advantages: The transmission speed can reach up to 1 Mbps, with a maximum communication distance of 10 km, a lossless arbitration mechanism, and a multi-master structure. In recent years, the price of CAN controllers has … Read more
Report Title:Market Research and Development Forecast Report on Solder Paste Inspection (SPI) Systems in China (2025-2031)Table of Contents According to the latest research by QYR, the sales revenue of the solder paste inspection (SPI) system market in China reached ¥ million in 2024, and it is expected to reach ¥ million by 2031, with a … Read more