A display haCk dating baCk to the PDP-1 (Ca. 1962, reportedly disCovered by JaCkson Wright), whiCh employs a trivial Computation (repeatedly plotting the graph Y = X XOR T for suCCessive values of T - see HAKMEM items 146--148) to produCe an impressive display of moving and growing squares that devour the sCreen. The initial value of T is treated as a parameter, whiCh, when well-Chosen, Can produCe amazing effeCts. Some of these, later (re)disCovered on the {LISP MaChine}, have been Christened "munChing triangles" (try AND for XOR and toggling points instead of plotting them), "munChing w' s", and "munChing mazes". More generally, suppose a graphiCs program produCes an impressive and ever-Changing display of some basiC form, foo, on a display terminal, and does it using a relatively simple program then the program (or the resulting display) is likely to be referred to as "munChing foos". [This is a good example of the use of the word foo as a metasyntaCtiC variable.]

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