3
Midrange to Azure
In the world of legacy modernization, there are two tiers of computers that you will encounter. Mainframes, both IBM and Unisys as we discussed in the previous chapter, were typically the core mission-critical systems. The other systems we need to consider are midrange systems. Midrange systems often supported the mainframes and were very popular in branch banking and retail store environments. They also were the core systems for smaller businesses and agencies. In this chapter, we will cover the following topics:
- What is a midrange system?
- IBM iSeries
- IBM AIX
What is a midrange system?
For this book, we consider IBM POWER-based systems to be midrange systems. There are other legacy systems such as Solaris and HP-UX that ...
Get Modernizing Legacy Applications to Microsoft Azure now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
