VME stands for VersaModular Eurocard, a widely used computer bus technology developed in the early 1980s. It is a hardware interface and standard form factor used for industrial and embedded computer systems. VME systems consist of a series of interconnected modules, referred to as Eurocards, which are mounted within a chassis or rack. These modules can include processors, memory boards, input/output cards, communications devices, and other peripherals.
VME utilizes a backplane architecture, where the modules are inserted into slots on the backplane, allowing for easy customization and expansion of the system. The backplane provides the necessary electrical connections and data paths between the modules, enabling them to communicate and exchange information.
The VME standard specifies the dimensions, mechanical characteristics, and electrical requirements for the Eurocards and backplanes, allowing for interoperability and compatibility between different manufacturers' products. The bus architecture used in VME systems is based on the VMEbus protocol, which defines the signaling and protocol specifications for data transfer and control operations.
VME has become a widely adopted standard in various industries, including aerospace, defense, telecommunications, and scientific research. Its flexibility, reliability, and support for high-performance computing have made it a popular choice for rugged and mission-critical applications. Over the years, VME has evolved with advancements in technology, resulting in variants such as VME64x that offer increased performance and capabilities.
In summary, VME is a computer bus technology and standard form factor that enables modular and expandable systems through Eurocards and backplanes. It provides a reliable and versatile platform for industrial and embedded applications, facilitating the integration of various hardware components into a cohesive system.
