How to create a Caesar cipher and decryptor in C
Learn to create a Caesar encryption and decryption program in C, with theory, examples, brute force, and best practices with strings.
Computer Technology
How to fix errors with unverified applications in Windows 11
Complete guide to fixing unverified app errors in Windows 11 and improving security, performance, and compatibility.
How to merge and separate cells in Excel: a complete guide
Learn how to merge and separate cells in Excel, use Text in Columns and formulas with & to manage your data like a pro.
How to cite and reference in APA format
Learn how to cite and reference in APA 7 format easily, with clear examples of texts, books, websites, articles and more.
How to calculate mean, mode, and median in Excel step by step
Learn how to calculate mean, mode, and median in Excel with AVERAGE, MEDIAN, MODE.ONE and MODE.SEVERAL explained step by step with clear examples.
What is the salt in a Linux password hash and why does it matter?
Discover what the salt is in the Linux password hash, how it works in /etc/shadow, and why it strengthens the security of your systems.
Rust Tutorial: Memory Safety and Concurrency
Learn Rust from scratch: ownership, memory security, and concurrency without data races, with clear examples and modern tools like Cargo.
C programming language vs Rust: real advantages and disadvantages
We compare C and Rust in terms of performance, memory usage, concurrency, and real-world applications. Discover which one is right for you for low-level programming.
Differences between Vulkan and Vulkan Compute for GPGPU and graphics
Discover the real differences between Vulkan, Vulkan Compute, OpenGL, DirectX, and CUDA for GPGPU and graphics, with practical examples and a cross-platform approach.
Totem vs Showtime Players on Linux
Discover the differences between Totem and Showtime, the new GNOME player, and how it integrates into Ubuntu and the Linux multimedia ecosystem.
Modern JavaScript Tutorial: Promises, async/await, and APIs
Learn promises and async/await in modern JavaScript to consume APIs, avoid callback hell, and handle errors with try/catch clearly.
Vulnerability on YouTube: This is how malware is distributed on a large scale
Discover how YouTube is used to distribute malware, what techniques cybercriminals use, and how to protect your accounts and devices.
Examples of low-level C and hardware-close languages
Discover examples of low-level C, machine language, and assembly language, and how they are used in operating systems and embedded software.
How to optimize images for use on websites to improve speed and SEO
Learn how to optimize images for the web: formats, compression, SEO, plugins, and tricks to speed up your site and improve its ranking.
Differences between the most used programming languages
Discover how "Hello World" changes in Python, JS, Java, C, Go, Swift, R, and more, and what it reveals about each language and its real-world uses.
Google Antigravity wipes an entire hard drive by clearing the cache
Discover how Google Antigravity wiped a hard drive by clearing the cache and what real risks AI agents with system access pose.
How the Internet arrived in Spain and its impact on our lives
Discover how the first internet connection in Spain was made and how the network has transformed society to become a key infrastructure.
V16 beacon connected: data, private domain and questions about DGT 3.0
V16 beacon connected: discover how it sends data, what role the DGT plays and why the key domain is registered to a private individual.
Cloudflare's latest global outage leaves half the internet in jeopardy
A massive Cloudflare outage has left websites, banks, games, and online stores without service in Spain and Europe. Learn about the extent and reasons for the outage.
Types of backups and differences: a complete guide for businesses
Discover all types of backups, their differences, and best practices to protect your company's data and avoid critical losses.
Formulas with arrays in Excel: a complete guide and practical examples
Master array and dynamic formulas in Excel with clear examples, tips, and advanced step-by-step uses.
Configure DNS on Android step by step
Learn how to configure DNS on Android step by step to gain speed, privacy, and security when browsing from your mobile phone or tablet.
Captcha scam: how it works, real risks, and how to protect yourself
Discover how the captcha scam works, what malware it hides, and the keys to detecting it and protecting your data before it's too late.
Goal Seek function in Excel: complete guide and examples
Learn how to use Goal Seek in Excel with clear examples of loans, notes, and investments. Get the most out of What-If analysis, step by step.
How to use macros in Word: a complete guide to getting the most out of them
Learn how to create, run, and protect macros in Word to automate tasks and save time with complete security.
Version control in Google Docs and Google Drive step by step
Learn how to use history and version control in Google Docs and Drive to recover changes, collaborate better, and avoid losing documents.
What are Word content controls and how to use them
Discover what Word content controls are, their types, uses, and how to configure them to create professional templates and forms.
Share files securely with SMB over QUIC
Learn how to use SMB over QUIC to securely share files over the Internet without a VPN, with TLS encryption, access control, and high performance.
PowerPoint Storyboarding: A Complete Guide to Storytelling in PowerPoint Presentations
Learn how to use PowerPoint Storyboarding to create clear, visual, and persuasive presentations step by step.
Windows Hello for Business, hardware keys, and SSO
Complete guide to Windows Hello for businesses: hardware keys, PKI, hybrid models, and secure SSO in Microsoft Enter ID and Active Directory.
What are Gaming VPNs and how do they affect your online games?
Discover what a Gaming VPN is, when it improves your online experience, how it affects ping, and what you should look for to choose the best option.
What is ASR (Attack Surface Reduction) and how does it protect your devices?
Discover what ASR (Attack Surface Reduction) is, how its rules work in Defender, and how to configure them step by step to protect your devices.
DLP in Microsoft 365: How to protect your sensitive data with Microsoft Purview
Discover how to use DLP in Microsoft 365 to protect sensitive data, prevent leaks, and comply with regulations using Microsoft Purview.
How to set up an equalizer for PC in Windows
Learn how to configure the equalizer on your PC, improve bass, mids and treble, and get the most out of the sound in Windows.
Google Maps: How to create custom maps with My Maps
Learn how to use Google My Maps to create custom maps, routes, and layers, and easily share them on your travels.
What is Application Security Posture Management (ASPM) and how does it improve the security of your applications?
Discover what ASPM is, how it works, and why it's key to managing the risk and security of your applications throughout the SDLC.
What are ASIO and WASAPI and how do they improve audio in Windows?
Discover what ASIO and WASAPI are, their differences, and how to configure them in Windows to achieve better sound quality and lower latency.
Windows 11: How to review and harden telemetry step by step
Learn how to review and harden telemetry in Windows 11, improve privacy, and gain performance without using third-party programs.
Persistent Memory Storage (PMEM): What it is and how to use it
Discover what persistent memory (PMEM) is, how it works, and how it differs from DRAM, SSD, and NVMe to speed up your systems.
PowerPoint for e-learning: interactivity, quizzing, and basic SCORM
Turn your PowerPoints into interactive e-learning courses with quizzes and SCORM. Discover how to create effective content compatible with any LMS.
Using emojis in passwords: advantages, disadvantages, and how to do it right
Is it a good idea to use emojis in passwords? Discover the advantages, real risks, and how to combine them effectively to improve your digital security.
Galaxy Z TriFold: Samsung's triple foldable phone that aims to combine mobile, tablet, and laptop.
The Galaxy Z TriFold, Samsung's triple foldable phone, combines a 10-inch phone and tablet with AI and DeX. Here's what it's like and when it might arrive in Europe.
Collabora Office vs LibreOffice: real differences and which one is right for you
Collabora Office vs LibreOffice: real differences, strengths and which one suits you best depending on your company or personal use.
What is the router port used for and how to get the most out of it
Discover what the router port is for, how to open it safely, and how to take advantage of LAN, WAN, and USB to improve your home network.
The best VLC tricks to get the most out of the player
Discover the best VLC tricks: converting, screen recording, ripping DVDs, using effects, shortcuts and much more to get the most out of the player.
How to edit and convert videos from VLC step by step
Learn to edit and convert videos with VLC: trim, merge, rotate, and change format without extra software. A practical and easy-to-follow guide in Spanish.
Differences between TCP and UDP ports and when to use each one
Discover the differences between TCP and UDP ports, their real uses, advantages, risks, and how to choose the right protocol in each case.
Linux 6.18: all the new features of the new kernel
Discover in detail all the new features of Linux 6.18: performance, hardware, security and why it aims to be the next LTS kernel.
New Amazon Echo update with Alexa Home Theater
Alexa Home Theater comes to Amazon Echo: compatible models, how to set it up with Fire TV, and what sound improvements it offers in your living room.
Israel bans Android in its military leadership and the impact of the ban on its technology
Why Israel is banning Android in its military leadership and how Spain is breaking with its technology as digital warfare and online propaganda grow.