Bclass

Bclass is a designation used across several technical and industrial domains to identify a specific category within a broader classification system. In computer networking, Bclass refers to the Class B block of IPv4 addresses, which encompass the range 128.0.0.0 to 191.255.255.255. This segment provides a medium‑size address space, originally intended for medium‑scale networks such as universities, large enterprises, and regional ISPs. A Class B network is identified by the first two octets of the address, leaving the remaining two octets for host addresses, thereby supporting up to 65,534 hosts per network.

In transportation, Bclass is employed as a model identifier for various vehicle series. For example, the B‑class locomotive in the Australian rail system denotes a series of diesel‑electric locomotives introduced in the 1970s, while the B‑class ferry operated by some European operators describes a specific size and capacity class for passenger vessels. The term also appears in the automotive sector, where manufacturers may label a mid‑range vehicle line as the B‑class, typically positioned between compact (A‑class) and midsize (C‑class) offerings.

In education and professional certification, Bclass can denote a secondary tier of competency or course level, indicating material that is more advanced than introductory (A‑class) but less specialized than expert (C‑class) content. This usage helps institutions structure curricula and signal progression pathways for learners.

Across these applications, the common thread is that Bclass serves as an intermediate categorization, providing a balance between breadth and specialization within a hierarchical system. Its precise meaning depends on the industry context, but it consistently denotes a middle tier in a structured classification.