60% Keyboard: How To Use Arrow Keys
Use Fn+IJKL to access arrow keys on 60% keyboards. Press Fn+I (up), Fn+K (down), Fn+J (left), Fn+L (right) for navigation without dedicated arrow keys.
Welcome to your complete learning center for understanding computers, technology, and information systems. Whether you're a student exploring computer science basics, a home user troubleshooting problems, or an enthusiast building your first gaming PC, you'll find clear answers and practical guidance across 120+ expert articles.
Our knowledge base covers the essential components that make computers work, including processors (CPUs), memory modules (RAM), storage drives (SSDs and hard drives), graphics cards (GPUs), motherboards, and power supplies. You'll discover how these hardware parts connect together through PCIe slots, SATA connections, and USB ports, communicate through data pathways, and process information to run your favorite applications and operating systems like Windows, macOS, and Linux.
Each article breaks down complex technical concepts into simple explanations that anyone can understand. We focus on practical knowledge you can apply immediately, whether you're troubleshooting error messages, planning a hardware upgrade, learning to install components, maintaining your system, or simply curious about how technology works. Browse by category above or explore our complete collection of computer guides and tutorials below.
Start your learning journey with our beginner-friendly guide designed to help you understand the basics.
Start Here - IT for BeginnersOur guides cover everything from computer hardware components like processors, motherboards, and graphics cards to software applications, operating systems, and system settings. You'll learn how internal parts work together, including how the CPU processes instructions, how RAM stores active data, and how storage drives like SSDs and hard drives save your files permanently.
Hardware articles explain physical components such as power supplies that convert AC electricity to DC voltage, cooling fans that prevent overheating, thermal paste that transfers heat from chips to heatsinks, and cases that house all the parts. You'll discover how to check temperatures, upgrade components, connect cables to the right ports, and diagnose problems when your computer won't start or runs slowly.
Software topics help you navigate Windows, macOS, and Linux operating systems. Learn to manage processes in Task Manager, adjust virtual memory settings, update device drivers, configure BIOS options, and optimize startup programs. Our tutorials show you how to change audio output devices, adjust screen brightness, connect to WiFi networks, and troubleshoot error messages that appear during normal computer use.
Gaming content focuses on building PCs for video games, selecting graphics cards with enough VRAM for high resolution textures, choosing power supplies with sufficient wattage for demanding components, and connecting monitors through HDMI or DisplayPort cables. You'll understand frame rates, refresh rates, VSync technology, and how to balance performance with energy consumption during long gaming sessions.
Networking guides explain how computers communicate through Ethernet cables and WiFi adapters, how routers direct traffic between devices, how IP addresses identify each machine on a network, and why bandwidth affects download speeds. Learn to set up home networks, configure firewall settings, troubleshoot connection drops, and understand the difference between 2.4GHz and 5GHz wireless frequencies.
Peripheral guides cover external devices including mechanical keyboards with different switch types, monitors with various panel technologies like IPS and TN, sound cards for enhanced audio quality, and USB hubs that expand available ports. Discover how refresh rates affect motion smoothness, how response times impact gaming performance, and which connections provide the best signal quality for your setup.
Security articles teach you to protect computers from viruses, malware, spyware, and ransomware threats. Learn how antivirus software scans files, how firewalls block unauthorized access, how virtual machines isolate potentially dangerous programs, and why regular backups to external drives or cloud storage prevent permanent data loss from hardware failures or cyberattacks.
Browse our complete collection of guides and tutorials below.