MUMPS (Massachusetts General Hospital Utility Multi-Programming System) is a programming language that has been around for over 50 years, and it is still being used today in various applications. This guide aims to provide beginners with an overview of MUMPS, how to write it, and what the best applications for it are.

Overview of MUMPS
MUMPS was developed in the late 1960s by Neil Pappalardo and others at Massachusetts General Hospital as a way to improve the hospital's data processing system. Since then, it has been widely used in the healthcare industry, but it has also found use in other fields such as finance and telecommunications. MUMPS is a high-level, interpreted programming language that is easy to read and write. It is known for its ability to handle large amounts of data and its fast processing speed.

Writing MUMPS Code
MUMPS code is written in text files with a .m extension. The language uses a simple syntax with no semicolons or brackets. Instead, it relies on indentation and whitespace to indicate code blocks. Here is an example of a MUMPS program that prints "Hello, World!" to the console:

```
WRITE "Hello, World!"
```

The WRITE command is used to output text to the console.

Variables in MUMPS are not declared with a data type. Instead, they are given a name and assigned a value when they are first used. Here is an example of a MUMPS program that uses a variable:

```
SET name="John"
WRITE "Hello, ",name,"!"
```

In this program, the SET command is used to assign the value "John" to the variable name. The variable is then used in the WRITE command to output "Hello, John!" to the console.

Best Applications for MUMPS
MUMPS has been used extensively in the healthcare industry for managing patient data, laboratory results, and billing information. It is also used in the financial industry for managing stock exchange data and in the telecommunications industry for managing telephone switching systems. MUMPS is well-suited for any application that requires handling of large amounts of data and high-speed processing.

Conclusion
MUMPS is a powerful and versatile programming language that has been in use for over 50 years. Its simple syntax, fast processing speed, and ability to handle large amounts of data make it well-suited for a variety of applications. This guide provides beginners with an overview of MUMPS, how to write it, and what the best applications for it are.