VA Kernel

The VA Kernel is a set of programs, developed by the Department of Veterans Affairs of the United States Government, which provide an operating system and MUMPS implementation independent abstraction to the VistA[?] Hospital Information System. These programs (called 'routines' in MUMPS) are the only programs which are expected to not be written in ANSI Standard MUMPS.

The CHCS[?] system and the RPMS[?] system have a Kernel as well, which provides a similar degree of support to those sytems as the VA Kernel does to VistA[?].

The VA Kernel provides abstractions for:

• Menu Management (MenuMan)
• Login and Access Security
• Task scheduling and Batch processing
• Input/Output devices
• Protocol and Event processing
• Date processing and manipulation
• Mathematical and common library functions