Programs are getting bigger and better. There are now many different types of ways that a person can interface with technology. When a person does so they are using an application. Through Virtual Reality (VR), Artificial Intelligence (AI), Augmented Reality (AR), Robotics, Machine Learning (ML), Optimization, and many more.
Applications solve real-world problems. This is the whole reason why people use computers! After all what good is a computer if it can't solve a problem? Applications allow people to solve problems and use technology as a tool to maximize and entertain our modern world. Imagine if we live in a world without smartphones. Every time we wanted to take a photo we would have to take our handheld cameras out, or even have a portable flashlight. Luckily that isn't the case but we have we these applications that allow us to use these tools that apply in real-life situations. A lot of these tools speed processes up significantly.