. T Diagrams
For languages A,B,C, and M:
	Translator        Interpreter     Machine     Other Program
	 ------------        ------       --------     -----
	|            |      |      |     |   M    |   |     |
	| A   ->   B |      |  A   |     |        |   |  A  |
	|            |      |      |      \      /    |     |
	 --.      .--       |      |        ----       -----
           |      |         |      |
           |      |         |      |
	   |  C   |         |  C   |
	    ------           ------
	Map A to B	Interpret A
	written in C	 written in C

The above fit together like dominoes to describe a language system.