Welcome to “An Introduction to Scheme and its Implementation” an introduction to Scheme and its implementation! In this blog post, we will discuss what Scheme is, how it works, and why it’s important for language development.

Scheme is a programming language that was developed in the 1970s at MIT by Guy L. Steele Jr., Gerald Jay Sussman, and others. It is a dialect of Lisp, which is a family of languages that are known for their powerful features and simple syntax. Scheme is a very useful language for implementing languages, or for transformational programming in general—that is, writing programs that write programs—or for implementing complex data structures.

Scheme has several features that make it attractive as a programming language. First, it has a simple syntax that makes it easy to learn and use. Second, its syntax allows for programs to be written in either an imperative or functional style. Third, it has powerful features such as first-class functions and continuations that make it well-suited for many types of programming tasks. Finally, Scheme programs are highly portable across versions of the same Scheme implementation on different machines, because machine architectures have little effect on the code written in Scheme.

All of these features make Scheme a great language for learning about language implementation and design principles. In fact, there is a book called “The Structure and Interpretation of Computer Programs” (or “SICP”) which uses Scheme as its primary example language to teach these concepts.

Now that you know what Scheme is and why it’s important, you can start exploring the language further!

What is Scheme?

Scheme is a dialect of the Lisp family of programming languages, created during the 1970s at the MIT AI Lab. It is a lexically-scoped, block structured, dynamically typed, mostly functional language. It facilitates the implementation of interpreters, compilers, and other program transformation tools for Scheme directly in Scheme, as well as program analysis and optimization techniques.

To get started with Scheme, you will need to first understand its syntax. The syntax of Scheme is simple, and there is a straightforward evolution from expressions to code. An expression can be broken down into components that are then dispatched to the appropriate code for that kind of expression. This allows for the actual operations specified by the program to be performed.

Once you have a grasp on the syntax, you can begin to explore the various features of Scheme. These include first-class procedures, which allow functions to be passed around like any other kind of data; tail recursion optimization; proper tail calls; and dynamic typing. All of these features make Scheme an excellent choice for implementing languages or for transformational programming in general–writing programs that write programs–or for teaching principles of language implementation.

By taking the time to properly learn what Scheme is and how it works, you can begin to take advantage of its powerful features and use it to create complex programs and applications.


In conclusion, Scheme is an incredibly powerful programming language with many unique features. It is a dialect of Lisp, the second-oldest programming language that is still actively used. Scheme is a dynamically typed, functional language and provides a wide range of features such as lexical scoping, first-class functions, and macros. Its syntax is easy to learn and understand, making it ideal for beginners or experienced programmers alike. There are several implementations of Scheme available, including RScheme, which is designed for use in embedded systems.

Scheme is an excellent choice for a variety of projects, from small scripts to large applications. By taking the time to learn how Scheme works and understanding its features, you can create powerful applications quickly and easily.