Category: Practical Guides & Comparisons

When you swipe your debit card at a coffee shop, check your account balance on your smartphone, or transfer money to a friend, you might assume these modern banking operations run on sleek cloud servers or cutting-edge distributed systems. The reality would probably surprise you: there’s an excellent chance that somewhere in the background, your…

When you think about operating systems, Windows, macOS, and Linux probably come to mind first. These familiar systems manage the computers we use daily, coordinating hardware resources and providing platforms for our applications. But in the specialized world of mainframe computing, where systems process billions of transactions daily and maintain uptime measured in years rather…

When you think about programming languages, your mind probably jumps to Python, JavaScript, or Java. These languages dominate headlines and university curriculums, making it easy to forget that some of the world’s most critical software runs on entirely different programming languages that have been quietly powering our digital infrastructure for decades. In the world of…

When you walk into a modern data center, you’ll see rows upon rows of sleek servers humming quietly in their racks. But in some corners of these same facilities, you might encounter something that looks entirely different: a large, imposing cabinet that seems to come from a different era of computing. This is likely an…

When you swipe your credit card at a store, withdraw money from an ATM, or book a flight online, you’re likely interacting with a mainframe computer without even knowing it. These powerful machines, which might seem like ancient technology from science fiction movies, actually process an incredible 68% of the world’s production IT workloads according…