You may not believe this but there are a lot of old mainframe computers still running today and they are running quite well. Many people ask why this is because the computing today can be done with much less space. But the reality is that many of these computer systems were built in the 70s and 80s and they cost quite a bit of money, and now they are paid for, and since they are working perfectly fine there is no need to replace them.
Additionally many Computer system Validation training institute of these systems are connected to hardware such as running printing presses, manufacturing facilities, and giant check-writing machines. Not everyone operates like the United States government where they just can all the old stuff and buy all the new stuff. Not all companies wish to shell out millions of new dollars on a new computer system today when they will be obsolete in five years. Especially if the machines they already have are already obsolete and they are working fine.
Not long ago, I talked to someone who worked for the mainframe division of Hitachi, and he was in charge of North America and visiting from Canada. The Hitachi company itself runs its own mainframe computers, and he says he is needed more than ever because when something goes wrong, the new kids just out of computer school don’t know how to fix them. They are trained in all the new stuff, but Hitachi is using all the old stuff in many locations, and generally they work fine. Plus, no one writes computer viruses for mainframes.
It’s a bit of a learning curve for someone new to figure out how to troubleshoot a mainframe computer, and many of the old-timers are now retired. So, you can see why it makes sense in many cases to keep the old mainframe computer system for now, especially if it is working fine, and is attached to other systems in the company running hardware.
Plus a company can have higher profits if it’s using an old system rather than investing huge amounts of money in information technology now. To some these old mainframes are nothing but technological dinosaurs, but they are still working, apparently those old dinosaurs have had quite an evolutionary run. Isn’t that interesting? Please consider all this.