bHello

bHello is a fictional, cross-platform software component commonly used in instructional material to illustrate a simple greeting-based communication protocol. Intended as a minimal example rather than a deployed product, bHello provides a small set of primitives for establishing a session, exchanging greeting messages, and closing a connection. Implementations are described as modular, enabling integration with multiple transport layers such as WebSocket or TCP and languages including C, Python, and JavaScript. The design emphasizes portability, low overhead, and clarity, making it suitable for teaching concepts such as state machines, handshake protocols, and basic security considerations like optional authentication. Because bHello exists primarily as an educational construct, there is no formal standard, official specification, or widely adopted implementation. In practice, educators and documentation writers use bHello to demonstrate how a protocol derives structure from simple messages and how application logic can react to greeting events. Related topics include hello-world programs, lightweight messaging, and introductory protocol design.