As a generation Y mainframer born in the 80’s, I find it hard sometimes to explain to my generational peers what I do.
Typically people my age a) have never heard of the mainframe or b) think of punch cards and green screen terminals they saw in a computer museum. They tend to be surprised when I tell them that mission-critical workloads like ledgers, payroll, inventory control, banking and financial transactions are in the year 2018 actually running on mainframes. In fact, some 68 % of the world’s IT production workloads run on mainframes (cio.com) and 71 % of global Fortune 500 companies have a mainframe (IBM). There are valid reasons for that such as reliability, availability, service-ability, scalability and security.