What Does Single-Board Computer (SBC) Mean?

A single-board computer (SBC) is a computer which is a complete computer in which a single circuit board comprises memory, input/output, a microprocessor and all other necessary features. However, unlike a personal computer, it does not rely on expansions for other functions. A single-board computer reduces the system’s overall cost as the number of circuit boards, connectors and driver circuits are all reduced.

Techopedia Explains Single-Board Computer (SBC)

Single-board computers are designed differently from standard desktop or personal computers, as they are completely self-contained. They often make use of a wide range of microprocessors and have increased density for the integrated circuits used. They are currently available in two configurations, namely with slot support or no slot support. They are also available with a wide range of capacities, although some are slow and limited compared to personal computers, as they are used to control simple processes.