What is Information Technology?
Information technology is the creation, maintenance and usage of computer systems, networks and infrastructure. In the workplace, people use IT to handle operations, organize data and other technological challenges. Technicians are responsible for retrieving, storing, processing and transmitting electronic data. IT professionals manage and troubleshoot software, hardware, networking and other computer applications for businesses.
What is Software Engineering?
Software Engineering has well defined computer scientific principles, software design principles, methodologies, principles and practices. It was mainly recognized in the early 60's as a seperate field of computer science.
The key areas in software engineering is design, systematic application, implementation and testing of software.
What is Web Development?
Web Development is essentially developing and building websites. To build a website as a developer there is a large element of coding languages that basically transmits information from the server and the user interface (client). The server has a programming language and the user interface also has a programming language and they "talk to each other". On the website itself, if you select a command on the site the signal sends to the server to get the required information.
What is Mobile Development?
Mobile Development is developing mobile applications or "apps" that is generally on smart phones or mobile phones. The principle is basically the same, there is software engineering involved because your designing a software process that is acceptable to the user or client.