FreeBSD Fundamentals

FreeBSD is a complete operating system, not a Linux distribution. The FreeBSD Project builds and releases a kernel, a base system, documentation, and a Ports Collection for third-party software. That split gives you a useful starting model: first identify whether a task concerns the base system or installed software.

The kernel manages hardware, memory, processes, filesystems, and network stacks. The base system supplies the userland programs, libraries, startup framework, and configuration that make the installed host work. Third-party applications arrive as prebuilt packages or from the Ports Collection. A package is normally the right first choice when you need supported software without a local build. A port is the source-based build recipe when you need its configurable build path.

The operating model