VHSIC Hardware Description Language. This is the basic language for hardware development of modern computing systems. It was developed in 1983 on demand of US Ministry of Defence with the purpose of logical scheme description for all stages of electronic systems development, starting from microchip modules and ending with large computing systems.
Glossary
VME, or VMEbus is a standard computer bus with its own signaling system designed for connecting different electronic devices working in real-time mode. It is mainly used in computers operated by UNIX operating system.
V4L or Video4Linux is a core interface for supporting real-time capturing of analog video. V4L API works only with Linux systems, although the developers named it after V4W (Video for Windows).
Video for Linux 2, shortly called V4L2, is a revolving version of Linux V4L API. It eliminates design bugs and restrictions the previous version had. The main difference between V4L and V4L2 lies in the number of supported devices: V4L2 provides a slightly more comprehensive range. The primary purpose of the V4L2 API is a camera device hardware provisioning and video frames production. In other words, it deploys a program that helps and application to learn one's device capabilities and to accomplish the needed device operation.