Informática-MAINFRAME
www.mainframestechhelp.com/tutorials/tso/	TSO-ISPF Host.
www.mainframestechhelp.com/tutorials/cobol/	COBOL Host.
www.tutorialspoint.com/es/cobol/index.htm	COBOL Host.
www.mainframestechhelp.com/tutorials/jcl/	JCL Host.
www.tutorialspoint.com/mainframe_tutorials.htm	Tutoriales.
www.youtube.com/watch?v=ZzjKKE05C_c&list=LL5cP8G60...	Mainframe (instalar de manera local con Hercules y Z-OS).
www.youtube.com/watch?v=SlkZG_MdPUk&list=PLuAnCGZj...	Mainframe (arrancar Hercules).