This is also called the Operating System. Application Software is software that tells the computer to solve a particular problem or handle information in a specific way. This kind of computer program is the kind you buy at the store. It is what the user wants to do. When we write programs, we will be writing programs that solve problems, so they will be applications programs.
Programmers talk to computers in special languages.
These 2 examples are written in QBasic - a programming language. This program adds 3 numbers and prints their sum. This program adds the whole numbers from 1 to 50 and prints their sum. If the computer runs out of memory, it can't work. While they write in languages like QBasic, or more likely Visual Basic, the computer can't actually understand those languages.