Home Server
A computer you run at home to provide services such as file storage, media streaming, backups or self-hosted apps to your devices.
A home server can be anything from a Raspberry Pi to a repurposed desktop or a purpose-built machine. Unlike cloud services, it keeps your data under your control, has no monthly fees beyond electricity, and can be tailored exactly to your needs. Typical uses include a NAS for files, a Plex or Jellyfin media server, Pi-hole for network-wide ad blocking, and Docker for running dozens of self-hosted applications.
Most people start small — often a single mini PC or Raspberry Pi running one or two services — and grow from there as they learn. The three practical considerations that shape a build are power efficiency (it runs 24/7, so idle wattage drives the running cost), storage (how much data you need to keep and protect), and noise (many servers live in a home office or living room). Because it's always on, two habits matter from day one: keep the software updated for security, and set up real backups, since a home server holding your only copy of family photos is a single point of failure until it's backed up offsite.
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Homelab
A personal lab environment at home used to learn, experiment with and run IT infrastructure.
Self-Hosting
Running software on hardware you control instead of relying on third-party cloud services.
NAS(Network-Attached Storage)
A dedicated storage device connected to your network that lets multiple devices store and access files centrally.