VSE/SP
A system called VSEn took its stand.
Born in '65, it's been around for years,
A lineage of DOS/360, it proudly wears.
A successor to DOS/VS, it aimed to be.
Then came VSE/SP, version one and two,
With features and updates, it surely grew.
IBM might discontinue VSE, they cried.
But fear not, dear children, for IBM stayed true,
Continuing to produce versions anew.
A successor to VSE/ESA, in style.
System z branding, a name so bold,
For IBM's mainframe, a story to be told.
21st Century Software takes the line.
They've licensed the source code, oh what glee,
Developing new versions, for all to see.
Random page:
TODO list