■ MAINFRAME LAB — z/OS ISPF/PDF 2026/04/30 22:57:42 | SYS: ZOS1
■ z/OS LOGON - MAINFRAME LAB
 WELCOME TO MAINFRAME LAB - AI-POWERED z/OS SIMULATOR
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 This system provides a full mainframe practice environment.
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F1=HELP F2=SPLIT F3=END F5=RFIND F6=RCHANGE F7=UP F8=DOWN F9=SWAP F10=LEFT F11=RIGHT F12=CANCEL MAINFRAME LAB v1.0 | AI-POWERED z/OS SIMULATOR