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2,373 results
Mainframe computers, also known as "big iron," power things from credit card processing to airline ticketing. How do they work, ...
1,514,325 views
8 years ago
cics #cobol #jcl #topictrick CICS Interview Questions or COBOL CICS interview Questions or CICS DB2 interview questions a ...
5,159 views
5 years ago
