🖥️ Parts of a Computer

Click any component to explore what it does, how it works, and real-world specs.

🔍 Laptop vs Desktop vs Server — What's Different?

💻 Laptop

  • Thin, low-power CPU
  • 8–32 GB RAM (soldered)
  • SSD storage (M.2)
  • Integrated or small GPU
  • Battery limits heat output

🖥️ Desktop

  • Full-power CPU + cooling
  • 16–128 GB RAM (upgradeable)
  • SSD + optional HDD
  • Dedicated GPU possible
  • Easier to upgrade parts

🎮 Gaming PC

  • High-clock CPU (8–16 cores)
  • 16–64 GB fast RAM
  • Fast NVMe SSD
  • Powerful dedicated GPU
  • Large PSU (600–1000 W)

🗄️ Server

  • Multi-core/multi-CPU
  • 256 GB–several TB RAM
  • RAID storage arrays
  • No display needed
  • Runs 24/7 non-stop
What is this?

A computer is a collection of hardware components working together — the CPU processes instructions, RAM holds working data, storage keeps files permanently, and the motherboard connects everything.

Why does it matter?

Understanding hardware helps you troubleshoot slowdowns, choose the right device, build your own PC, and understand the limits of software. Every app, game, and AI model runs on physical hardware.

Key terms
CPU — Central Processing Unit; the main processor that runs all instructions RAM — Random Access Memory; fast but temporary working memory SSD/HDD — Solid State / Hard Disk Drive; permanent storage for files GPU — Graphics Processing Unit; parallel processor for graphics and AI Motherboard — connects all components; contains chipset and firmware PSU — Power Supply Unit; converts mains power to voltages components need GHz — Gigahertz; billions of cycles per second (CPU speed) PCIe — PCI Express; high-speed slot connecting GPU and NVMe SSD
🎯 Try this challenge

A gaming PC and a school laptop both have a CPU, RAM, and storage — but very different specs. Which component matters most for smooth video playback? Which matters most for loading many browser tabs at once?

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