What is the Default Raspberry Pi OS?

This article provides a quick overview of the official and recommended operating system for the Raspberry Pi. It covers the history of the OS, its key features, the different versions available for download, and how to easily install it using the official imaging tool.

The Official Choice: Raspberry Pi OS

The default and officially recommended operating system for the Raspberry Pi is Raspberry Pi OS. Formerly known as Raspbian, this operating system is officially developed and maintained by the Raspberry Pi Foundation. It is highly optimized specifically for the Raspberry Pi’s ARM-based processors, ensuring that users get the most performance and stability out of their tiny credit-card-sized computers.

Core Features and Architecture

Raspberry Pi OS is built on top of Debian, a highly stable and secure Linux distribution. Because it is tailored for the Pi hardware, it comes pre-loaded with essential drivers and software that make plug-and-play functionality seamless.

• PIXEL Desktop Environment: The default desktop version uses PIXEL (Pi Improved Xwindows Environment, Lightweight). It is a clean, modern, and resource-efficient graphical user interface that runs smoothly even on older Pi models.
• Pre-installed Software: The OS comes packed with useful tools right out of the box, including the Chromium web browser, the VLC media player, and programming environments like Python and Scratch to help users start coding immediately.
• Broad Compatibility: Raspberry Pi OS supports virtually all Raspberry Pi models, from the ultra-low-cost Raspberry Pi Zero to the powerful Raspberry Pi 5.

Available Versions

Depending on your project requirements and the specific Raspberry Pi model you own, the Raspberry Pi Foundation offers three primary editions of the OS:

1. Raspberry Pi OS with desktop and recommended software: The most complete version, featuring the graphical desktop alongside a robust suite of programming tools, office applications, and games.
2. Raspberry Pi OS with desktop: A middle-ground option that includes the graphical user interface but leaves out the heavy pre-installed software bundles to save storage space.
3. Raspberry Pi OS Lite: A minimal, command-line-only version. It contains no graphical desktop environment and is ideal for headless servers, IoT devices, or advanced users looking to maximize system resources.

Additionally, the OS is available in both 32-bit and 64-bit architectures. While older boards require the 32-bit version, modern boards (Raspberry Pi 3, 4, 5, and Zero 2 W) benefit significantly from the 64-bit version’s enhanced performance and memory management.

How to Install Raspberry Pi OS

The easiest and most reliable way to install the operating system is by using the Raspberry Pi Imager, a free software utility available for Windows, macOS, and Linux.

To install the OS, you simply insert a microSD card into your computer, open the Raspberry Pi Imager, select your specific Raspberry Pi model, choose your preferred version of Raspberry Pi OS, and click write. The tool also features an advanced customization menu allowing you to pre-configure Wi-Fi settings, set usernames, and enable SSH before the first boot.