__/\\\________/\\\__/\\\\\\\\\\\\\\\__/\\\________/\\\__/\\\\____________/\\\\__/\\\________/\\\_____/\\\\\\\\\\\___        
 _\/\\\_______\/\\\_\/\\\///////////__\/\\\_______\/\\\_\/\\\\\\________/\\\\\\_\/\\\_______\/\\\___/\\\/////////\\\_       
  _\/\\\_______\/\\\_\/\\\_____________\//\\\______/\\\__\/\\\//\\\____/\\\//\\\_\//\\\______/\\\___\//\\\______\///__      
   _\/\\\\\\\\\\\\\\\_\/\\\\\\\\\\\______\//\\\____/\\\___\/\\\\///\\\/\\\/_\/\\\__\//\\\____/\\\_____\////\\\_________     
    _\/\\\/////////\\\_\/\\\///////________\//\\\__/\\\____\/\\\__\///\\\/___\/\\\___\//\\\__/\\\_________\////\\\______    
     _\/\\\_______\/\\\_\/\\\________________\//\\\/\\\_____\/\\\____\///_____\/\\\____\//\\\/\\\_____________\////\\\___   
      _\/\\\_______\/\\\_\/\\\_________________\//\\\\\______\/\\\_____________\/\\\_____\//\\\\\_______/\\\______\//\\\__  
       _\/\\\_______\/\\\_\/\\\__________________\//\\\_______\/\\\_____________\/\\\______\//\\\_______\///\\\\\\\\\\\/___ 
        _\///________\///__\///____________________\///________\///______________\///________\///__________\///////////_____

You have reached HFVMVS, a Public Access MVS System.

This system is available at mvs.hugfreevikings.wtf port 1023 for 3270 Emulators

This website is hosted on HFVMVS running Tk5 using Hercules via HTTPD, get access HERE

What is MVS?

MVS was IBM's flagship mainframe operating system from the mid-seventies until the mid-eighties. MVS TK5 is an implementation of OS/VS2 MVS Release 3.8J (Overview). The successors to MVS 3.8, MVS/XA, MVS/ESA, OS/390 and z/OS all demonstrate their OS/VS MVS 3.8 heritage.

What is HFVMVS?

For today's computers, emulating other architectures is child's play. Most anyone can download a ZIP file and have a fully functional System/370 or other Mainframe running in their own PC. Computers weren't always like this though, in the days of the older Mainframes multiple users would share hardware and have the ability to specialize in their own interests. Typically this would be restricted to a local company or University, but this restriction isn't necessary anymore.

A COBOL programmer can focus on COBOL, and not need to understand the process of adding DASD and getting them mounted. Or CICS via KICKS, without needing to maintain an install. A user interested in playing games or chatting doesn't need to learn JCL in order to identify themselves to the system and enjoy the aesthetic of ISPF. The different possibilities are endless and we have no intention of stifling ideas so long as they don't break the rules.

The HFVMVS Community system is running on a Raspberry Pi 5B with 256GB of NVMe storage. You can find more info about "Our Mainframe" here.

What is there to do?

Follow the rules and enjoy the following:

  • The base features of Tk5, managed by volunteer Operators
    • Waterloo SCRIPT, a document preparer
    • BREXX/370, REXX but easier screen support!
    • ADVENTURE, a text based dungeon
  • KICKS for TSO, a CICS Alternative (KSSF to quit)
  • Jay Moseley's SYSCPK Pack for extra compilers and features
  • MVS Trader
  • And more!

Acknowledgements

This system wouldn't be possible without: