Competitive programming is a mind sport usually held over the Internet or a local network, involving participants trying to program according to provided specifications.

Machine learning is an application of artificial intelligence (AI) that provides systems the ability to automatically learn and improve from experience without being explicitly programmed.

Web development is the building and maintenance of websites; it's the work that happens behind the scenes to make a website look great, work fast and perform well with a seamless user experience.

Mobile application development is the set of processes and procedures involved in writing software for small, wireless computing devices. Like Web application development, mobile application development has its roots in more traditional software development

Augmented reality (AR) adds digital elements to a live view often by using the camera on a smartphone. Examples of augmented reality experiences include Snapchat lenses and the game Pokemon Go. Virtual reality (VR) implies a complete immersion experience that shuts out the physical world.

Design is a visual look or a shape given to a certain object, in order to make it more attractive, make it more comfortable or to improve another characteristic. Designers use tools from geometry and art.

The Internet of Things (IoT) refers to a system of interrelated, internet-connected objects that are able to collect and transfer data over a wireless network without human intervention.

Robotics, design, construction, and use of machines (robots) to perform tasks done traditionally by human beings

Cyber security is the application of technologies, processes and controls to protect systems, networks, programs, devices and data from cyber attacks. It aims to reduce the risk of cyber attacks and protect against the unauthorised exploitation of systems, networks and technologies.

Video game development is the process of making a video game. You take an idea or a concept for a game, and you develop, program, engineer, render, record, mix, produce, test, etc. until you have a full-fledged game. That definition is a good place to start, but it's far from the whole picture.