interpreter (computing) wikipedia - EAS
Interpreter (computing) - Wikipedia
https://en.wikipedia.org/wiki/Interpreter_(computing)An interpreter might well use the same lexical analyzer and parser as the compiler and then interpret the resulting abstract syntax tree.Example data type definitions for the latter, and a toy interpreter for syntax trees obtained from C expressions are shown in the box.. Regression. Interpretation cannot be used as the sole method of execution: even though an interpreter can …
Shell (computing) - Wikipedia
https://en.wikipedia.org/wiki/Shell_(computing)In computing, a shell is a computer program which exposes an operating system's services to a human user or other programs. In general, operating system shells use either a command-line interface (CLI) or graphical user interface (GUI), depending on a computer's role and particular operation. It is named a shell because it is the outermost layer around the operating system.