A Guide to Computer Hardware Components and Their Functions
Learn what the main parts inside and around a computer do, how they work together, and what to check before buying or upgrading hardware.
Technology explainers
Understand the machine,
not just the fix.
Clear maps of the systems behind everyday technology. Learn what each part does, how the pieces depend on one another, and which details actually matter before you buy, change, or troubleshoot anything.
Start with computer hardware
Start hereTen component groups, one complete system.
What you will get
A useful mental model.
An explainer should leave you able to reason about the system—not merely repeat a definition.
- 01Map the parts
See the components, jobs, and dependencies without losing the shape of the whole system.
- 02Decode the language
Understand the terms you will meet in settings, specifications, support conversations, and buying decisions.
- 03Know the limits
Recognise what the explanation can establish, what needs testing, and when a specialist is the sensible next step.
On the shelf now
Start with a system or incident.
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Explainers build understanding. The guide library also contains step-by-step help for setup and maintenance.
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