Basics of Starting Scheme - MIT/GNU Scheme 9.4
Description: MIT/GNU Scheme 9.4

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### 2.1 Basics of Starting Scheme

Under unix, MIT/GNU Scheme is invoked by typing

         mit-scheme

at your operating system's command interpreter. Under Windows, MIT/GNU Scheme is invoked by double-clicking on a shortcut. In either case, Scheme will load itself and print something like this:

         Copyright (C) 2014 Massachusetts Institute of Technology
         This is free software; see the source for copying conditions. There is NO
         warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

         Image saved on Friday May 16, 2014 at 10:35:55 PM
           Release 9.2 || Microcode 15.3 || Runtime 15.7 || SF 4.41 || LIAR/x86-64 4.118
           Edwin 3.116

This information, which can be printed again by evaluating

         (identify-world)

tells you the following version information. ``Release`' is the release number for the entire Scheme system. This number is changed each time a new version of Scheme is released. ``Microcode`' is the version number for the part of the system that is written in C. ``Runtime`' is the version number for the part of the system that is written in Scheme.

Following this there may be additional version numbers for specific subsystems. ``SF`' refers to the scode optimization program `sf`; ``LIAR/ARCH`' is the native-code compiler, where ARCH is the native-code architecture it compiles to; ``Edwin`' is the Emacs-like text editor. There are other subsystems you can load that will add themselves to this list.