Runtime facts for kids
In the world of computers, runtime is a cool word that means the time when a computer program is actually running. It's like when you press "play" on a video game – the time from when the game starts until you quit is its runtime!
What is Runtime?
When you open an app or start a game on your computer, it begins to run. The period from when a program starts until it finishes is called its runtime. It's when the computer is busy doing all the tasks the program tells it to do.
Sometimes, the word runtime can also mean a special program that helps other programs run. Think of it as a manager for your computer's programs. This manager makes sure everything works smoothly while your program is active.
You might also hear about a runtime library. This is a collection of basic code that many programs use. It's like a toolbox filled with common tools that different programs can borrow to get their jobs done.
What is a Runtime Environment?
A runtime environment is like a special setup or a virtual space where programs can run. It provides all the necessary services and tools that a program needs to work properly. Imagine it as a playground for your computer programs, giving them everything they need to play and function.
During a program's runtime, many things happen. The computer loads all the different parts of the program. It also links them together so they can communicate. Then, the program actually starts doing what it's supposed to do.
An Example: Java Programs
Let's look at an example with Java programs. If you have a program written in Java, it needs something called the Java Runtime Environment (JRE) to run.
The Java program asks the JRE for help with different tasks. The JRE then provides these services, making sure the Java program can do its job. Because the JRE helps the Java program run, it's considered the program's runtime environment.
Both the Java program and the JRE also ask the computer's operating system for help. The operating system is like the main boss of the computer. It provides services for itself and all the programs running on it. You could even say the operating system provides a runtime environment for itself!
Related Pages
- Compile time
- Interpreter (computing)
- Run-time system
