|Posted on Feb 11, 2012 10:43:06 PM | Linda Cureton | 48 Comments ||
This month marks the end of an era in NASA computing. Marshall Space Flight Center powered down NASA’s last mainframe, the IBM Z9 Mainframe. For my millennial readers, I suppose that I should define what a mainframe is. Well, that’s easier said than done, but here goes -- It’s a big computer that is known for being reliable, highly available, secure, and powerful. They are best suited for applications that are more transaction oriented and require a lot of input/output – that is, writing or reading from data storage devices.
They’re really not so bad honestly, and they have their place. Things like virtual machines, hypervisors, thin clients, and swapping are all old hat to the mainframe generation though they are new to the current generation of cyber youths.
In my first stint at NASA, I was at NASA’s Goddard Space Flight Center as a mainframe systems programmer when it was still cool. That IBM 360-95 was used to solve complex computational problems for space flight. Back then, I comfortably navigated the world of IBM 360 Assembler language and still remember the much-coveted “green card” that had all the pearls of information about machine code. Back then, real systems programmers did hexadecimal arithmetic – today, “there’s an app for it!”
//LCURETON JOB (NASA,CIO)
Tags : IT Transformation, Technology