Server

Definition

A server is a device or software that provides services, data, or resources to other devices (clients) over a network.

What Problem It Solves

It centralizes resources and services so multiple clients can access them efficiently without duplicating data or processing on every device.

What Happens If Not Used

Without servers, each device would need to store and manage its own data and services, making sharing, communication, and centralized control impossible.

Easy Wording

A server is a powerful computer or system that gives information or services to other devices.

Layman Example

When you watch a video on YouTube, YouTube’s computer sends that video to your phone or laptop.

Technical Example

A web server (like Apache or Nginx) listens for HTTP requests from a client (browser). When a request is received, it processes it and sends back the requested web page or data (HTML, JSON, files, etc.).