ProTech Blog
Digital Certificates Explained
Digital certificates are an integral component of how modern networks function. Make no mistake – we’re not talking about some kind of digital gift certificates for online shopping, but rather the essential public key certificates used to authenticate users, devices, and servers.
REXX Programming Language: What it is, Where it's Used, and Why You Should Care
REXX programming or Restructured Extended Executor is a structured general-purpose programming language used by programmers across the world. This high-level IT language was first developed by IBM Fellow Mike Cowlishaw, and it is known for its efficiency.
You Better Be Able to Answer These 18 Mainframe Interview Questions
Mainframes vs. Servers: How They Are Different (and Similar)
Mainframes vs. servers–if you’re expecting a magic bullet explanation of how they differ, you’re in for a surprise. They look about the same, they have the same sort of technology, but where they differ is in scale.
Trying to compare mainframes to servers is like asking what’s the difference between an apple and a bushel of apples. Or ants and Godzilla. Who said we IT types aren’t creative.