SkillCoded

Computer Hardware

PC Components and Their Functions

Learn the roles of six core desktop PC components, trace how instructions move through the system, and choose safe first inspection steps.

Beginner6 min read
Foundation lessonIT support foundationsPractice

UNTIMED COACHING

Practice before the pressure

Use feedback to correct the model, not merely memorize an option position.

GUIDED PRACTICE

Practice the lesson questions

Answer normal lesson questions without a timer. Every answer includes an explanation, and incorrect answers can be tried again before continuing.

CONCEPT MODELS

See the lesson as a system

Use these visual guides to connect the key ideas before answering the questions.

Core components work as one systemInput reaches the processor, active work uses RAM, and results can be displayed or saved.
Core components work as one systemAn input device sends work to the CPU and RAM before output or storage.
Input deviceprovides commands
CPUprocesses instructions
RAMholds active work
Output or storageshows or saves results
Power and cooling support every taskThe power supply distributes electricity while fans and airflow remove heat.
Power and cooling support every taskPower reaches components while a separate cooling path removes heat.
Working PCcomponents perform tasks
Support pathskeep operation stable
Power pathelectricity to components
Cooling pathheat leaves the case