Development of Red started out with Red/System—this is a low-level language (like C) to enable programming at the full system level. Red/System is like an older sibling—it looks very much like Red, but it is aimed at lower-level programming so it is more restricted. We'll come back to it in Chapter 10, Advanced Red.
Gradually, Red evolved this foundation, adding with each release more and more data types, actions, and functions. A REPL interactive coding console, execution on ARM processors, a parsing engine, a cross-platform GUI dialect (working on Windows and macOS, and nearing completion on Linux and Android), reactive programming, and macros are among the hallmarks of this evolution.
From January 2015, the Fullstack Technologies ...
