What Is a CPU?
The CPU is the "brain" of a computer. Learn what clock speed, cores, and threads mean, and how Intel, AMD, and Apple Silicon compare — with diagrams.
PC Build & Hardware Articles
20 articles · in orderWhat Is a GPU?
Learn what a GPU does, how it differs from a CPU, why GPUs are essential for AI, and which brands to know — explained with diagrams.
What Is RAM? A Beginner's Guide
Find out what RAM (memory) does in a PC, how it differs from a CPU and SSD, and what the 8 GB vs. 16 GB difference really means — explained with diagrams.
SSD vs. HDD: What's the Difference?
Compare SSD and HDD storage — speed, price, lifespan, and failure risk — with clear diagrams for upper-elementary through high school.
What Is a Motherboard?
Find out what a motherboard does as the foundation of a PC, how it connects the CPU, RAM, and GPU, and why choosing the right spec matters — with diagrams for upper-elementary through high school.
What Is a Power Supply Unit (PSU)?
Learn about the PSU in a custom-built PC — wattage, 80 PLUS certification, and how to choose — explained with diagrams.
Parts List for a Custom PC Build
All 8 components you need to build a PC listed with their roles and budget estimates — a clear buying checklist for upper-elementary through high school.
Your First PC Build: A Beginner's Guide
A step-by-step guide to safely building your first PC — from gathering tools to the first boot check — illustrated across 5 stages. students can do it too!
Build vs. BTO: Which Should You Choose?
Compare the pros, cons, and ideal users of a full custom build versus a BTO (build-to-order) PC. A clear illustrated guide deciding which route to take.
How to Choose a Gaming PC
GPU, CPU, RAM, and monitor benchmarks to check before buying a gaming PC, plus budget guides for Full HD, WQHD, and 4K — illustrated with diagrams.
Building a PC on a Tight Budget
Tips for getting the best-feeling PC within a limited budget — including what to prioritise, where to save, and which compromises to avoid — illustrated with diagrams.
Can You Upgrade a Laptop?
How far can you upgrade a laptop? RAM and SSD swap feasibility, model-by-model trends, and tips if you want to modify their portable PC — with illustrated charts.
What Does a RAM Upgrade Actually Do?
Does adding RAM really make your PC faster? A use-case-by-use-case breakdown of when a RAM upgrade helps — and when it doesn't — illustrated with diagrams.
How to Speed Up Your PC with an SSD Swap
Why swapping from HDD to SSD slashes boot and app load times, plus a step-by-step guide to data migration and cloning — illustrated with diagrams.
Why Does My PC Get So Hot?
Why do CPUs and GPUs generate heat, what happens when a PC runs too hot, and how to keep temperatures in check — illustrated with diagrams.
What Do Cooling Fans Actually Do?
What cooling fans do inside a PC, the difference between air and liquid cooling, fan types and how to choose them — illustrated with diagrams.
How to Choose a Used PC
Checklist, units to avoid, and budget-range targets for buying a used laptop or desktop PC — an illustrated guide.
Is PC Repair Hard?
Common PC problems, repair difficulty levels, the line between DIY and professional repair — an illustrated troubleshooting guide .
Monitor Basics: How to Choose
The five key monitor specs — size, resolution, refresh rate, panel type, and connections — explained by use case, with illustrated charts .
Keyboard Basics: How to Choose
Membrane vs. scissor vs. mechanical, switch types, layout, size, and connection method — keyboard selection basics illustrated with diagrams.