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Technical Articles

System Tutorial

How to change the default browser on a Mac

TochangethedefaultbrowseronyourMac:1.GotoSystemSettings>General>Defaultwebbrowserandselectyourpreferredbrowser.2.Forunsupportedbrowsers,setitasdefaultwithinthebrowser’sownsettings.3.AdvanceduserscanuseTerminalwiththeduticommandtoassignbrowserha

Sep 10, 2025 am 12:21 AM

mac default browser

How to change screen resolution in Linux

Toadjustdisplayresolution,usexrandrtolistandsetmodes,createcustomresolutionswithcvt,oruseGUIsettingsinyourdesktopenvironment.Forconsolemode,configureGRUBwithdesiredvideoparametersandupdatetheconfiguration.

Sep 10, 2025 am 12:14 AM

linux Screen Resolution

How to use the grep command in Linux

TosearchtextpatternsinLinux,usegrepeffectively:searchinfiles,ignorecasewith-i,recursedirectorieswith-r,showlinenumberswith-n,invertmatcheswith-v,countoccurrenceswith-c,andmatchwholewordswith-w.

Sep 10, 2025 am 12:10 AM

linux grep

It's Time to Uninstall Nova Launcher

I have been using Android phones since 2010, and one of the apps that has accompanied me almost the entire process is Nova Launcher. It has been the king of desktop customization for many years, but now, this classic app is officially coming to an end. The founder of Nova announced that it will be withdrawn soon and the app will be completely abandoned. Kevin Barry, the original developer of Nova Launcher, posted a post last weekend called Farewell, announcing that he is no longer involved in the project. He said in the article that he had left Branch, a company that acquired Nova in 2022. For those who are concerned about the development trajectory after the acquisition, this news may

Sep 09, 2025 pm 06:15 PM

Signal Finally Gets A Long-Awaited Feature

Signal has successfully established itself as a serious alternative to WhatsApp and other messaging platforms, but until now, it’s been missing a crucial feature—cloud backups. That changes today, although the implementation is somewhat unique compar

Sep 09, 2025 pm 06:03 PM

Google Gemini Can Now Take Your Audio Files

Keep in mind that once an audio file is uploaded, Gemini can do far more than just transcribe it into text. You can ask the AI to summarize the main ideas, detect and differentiate between speakers, or pull out specific action items and quotes. This

Sep 09, 2025 pm 05:57 PM

Linux ip Command: 7 Practical Usage Examples

Ever found yourself curious about what the ip command in Linux can actually do? Whether you're new to using the terminal or diving into network administration, this guide will walk you through practical uses of the ip command with real-world examples

Sep 09, 2025 pm 05:24 PM

The 5 Best Window Management Extensions for Ubuntu

If you're an Alt Tab user like me, you're going to fall in love with Advanced Alt Tab Windows Switcher (AATWS). This extension transforms the basic Alt Tab functionality into something much more powerful and personalized! Once enabled, pressing Alt T

Sep 09, 2025 pm 05:09 PM

Getting Started With Boolean Logic in Python

Boolean Values in Python Now that you've seen the concept of Boolean logic, let’s see how it shows up in Python. In Python, Boolean values are represented by two special keywords: TrueFalse Notice the capital le

Sep 09, 2025 pm 04:45 PM

A list of sports VR games | Dahan, come to VR to get some warmth

As time enters deep winter, the last one of the twenty-four solar terms has also ushered in - the Great Cold. As the saying goes, "The Great Cold occurs every year, not in the Three Nine or the Four Nine." The coldness of the Great Cold is indeed unbearable. Coupled with the recent continuous rainfall, "wearing a down jacket and bringing an umbrella" has become my mother's repeated advice. However, no matter how many layers you wear, in this cold winter without sunshine, the wind blows and rain slants, the editor still feels chill. Is it so cold that I rolled my eyes and was it just hiding in the air-conditioned room "drowsy"? No, the editor is unwilling to admit defeat easily! At this time, the editor remembered the "VR cycling simulation" recommended to overtime colleagues last week, and then glanced over the sports VR games piled up in the office, and his smile gradually became "frivolous"... Football: "FinalSoccerVR" first

Sep 09, 2025 pm 04:27 PM

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How to disable bing search on Win10 start menu?

The Windows 10 start menu has a function, that is, when no content is found in the local search, the built-in Bing search will be automatically called. Whether for privacy concerns, technical failures or personal preferences, this article will explain how to disable the Bing search feature in the Start menu. When you search in the Start menu of Windows 10, local search results, such as settings, documents, or applications, are preferred. If there is no local match, the system will use the Bing search engine to search the keywords and present the search results in the Start menu, as shown in the figure below. If you are logged into your Microsoft account, these search records will be uploaded to Microsoft and under your privacy controls.

Sep 09, 2025 pm 04:24 PM

word windows computer win10 Registry Explorer win Microsoft search engine bing Bing search

R language installation

1 First, visit and open the official website of R language 2 On the main page, click the "Download R" button 3 to enter the mirror selection interface, scroll down and select the mirror in China, and it is recommended to select the address of the first Tsinghua University. 4 Select the appropriate version according to your operating system. Here, select "Download R for Windows" 5 on the "Basics" line, click "Install R for the first time" 6 Click "Download R3.3.3 for Windows". After saving the file, double-click the installer and install it as if you installed other software as you would. 7. Select the installation path. It is recommended to select a non-C disk location. 8. Make sure that the installation path does not contain Chinese characters to avoid unexpected errors. Remaining installation options

Sep 09, 2025 pm 04:21 PM

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How to change the IP address in win11? How to set up the IP address in win11?

With the release of Microsoft's new Windows 11 system on June 24, the Windows 10 system that people have used for nearly 8 years has gradually come to an end. At the same time, Microsoft announced that it will completely terminate the update and support of the Windows 10 operating system on October 14, 2025 to welcome the full popularization of Windows 11. Today I will tell you a tutorial on how to change the IP address of Win 11. 1. Open the Windows 11 system desktop, right-click the Start menu icon on the taskbar, and click [Settings] in the open menu 2. Open the settings window, and click "Network & Internet" in the navigation menu on the left and left.

Sep 09, 2025 pm 04:18 PM

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Wind River fixes multiple security vulnerabilities in VxWorks

You can often hear about vulnerabilities in Windows and Android systems, while iOS and Linux have relatively few vulnerabilities. However, this article will reveal to you the 11 serious zero-day vulnerabilities discovered in the VxWorks real-time operating system (RTOS). RTOS is widely used in many critical computer systems, so the large-scale security vulnerabilities exposed this time may have catastrophic impact. The report pointed out that in the past 13 years, these devices have had at least 11 zero-day vulnerabilities. Unfortunately, since RTOS devices are low-key workers in electronic devices, such issues have not attracted widespread attention from the media. For example, RTOS software controls many more from modems, elevators to nuclear magnetic resonance (MRI) scanners, etc.

Sep 09, 2025 pm 04:15 PM

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