Meaning – The term host command facility refers to the feature available on System/390, 43xx, and 30xx host systems that enable users to access application programs on other systems as if they were using remotely attached 5250-type display stations.
Host Command Facility is a VTAM application program that runs on an MVS or VSE host. HCF works with its distribution partner, Distributed Host Command Facility (DHCF), so a user at a host terminal can access applications at distributed systems.
The host command facility was released in 1989 and it was withdrawn from marketing in 2001.
Example of usage – “Distributed systems where the host command facility was supported included DPPX/370, System I (AS/400), System x (RS/6000), System/1, System/36, and other systems. Executed on z/OS or z/VSE as a VTAM application.”