To many people who are thrown to work at a mainframe computer on their first job, they feel lost. The hardware is a complete mystery. Programmers work on green screens. Mainframe people seem to speak a completely different language and that doesn't make life easy. What's more, the books and manuals are incredibly hard to comprehend.

<strong>"What on earth is a Mainframe?"</strong> is an absolute beginner's guide to mainframe computers. We'll introduce you to the hardware and peripherals. We'll talk about the operating system, the software installed on a mainframe. We'll also talk about the different people who work on a mainframe. In a nutshell, we'll de-mystify the mainframe.