What are computers?
01Electronic machines that receive input, process data using instructions, and produce useful output — helping us store, organize and communicate information fast and accurately.
Short and clear explanations, followed by a modern, visual glossary. Perfect for quick study or classroom demos.
Electronic machines that receive input, process data using instructions, and produce useful output — helping us store, organize and communicate information fast and accurately.
They follow the Input → Process → Output → Storage cycle. Hardware executes operations in CPU and memory; software provides the instructions that drive those operations.
The CPU is the “brain” that executes instructions and coordinates operations — but performance depends on balance with RAM, storage, and solid software.
CPU, RAM, storage (SSD/HDD), motherboard, PSU, GPU, and I/O (keyboard, mouse, display). On the software side: OS and applications.