What is the difference between IT and Software Engineering?

IT means 'information technology' and is a broad term that covers using using computers and software to solve organizational problems. read more

Software Engineering in contrast has the narrower focus of how to create the abstract set of instructions used in building various systems. Note that the software can have various purposes as it could be a game, operating system, or part of something used to run a business. read more

software engineering is applying computer science to build software systems that are useful for people. computer engineering is designing and building the computers I like to think of a spectrum from physics and chemistry up through electrical engineering, computer engineering, computer science, software engineering, information systems, business. read more

The main difference between a Systems Engineer and a Software Engineer (at least in defense/aerospace) is the level of abstraction you're working at. A Systems Engineer works at a higher level of abstraction. They are the ones who right the high level requirements and make sure the design fits the customer requirements. read more