"ModifyEvaluatorNames" is a front end token that opens the Kernel Configuration Options dialog box.
OwnValues[x] gives the rule corresponding to any ownvalue defined for the symbol x.
UpValues[f] gives a list of transformation rules corresponding to all upvalues defined for the symbol f.
DownValues[f] gives a list of transformation rules corresponding to all downvalues defined for the symbol f.
Unevaluated[expr] represents the unevaluated form of expr when it appears as the argument to a function.
HoldComplete[expr] shields expr completely from the standard Mathematica evaluation process, preventing even upvalues associated with expr from being used.
ReleaseHold[expr] removes Hold, HoldForm, HoldPattern, and HoldComplete in expr.
HoldForm[expr] prints as the expression expr, with expr maintained in an unevaluated form.
HoldAllComplete is an attribute which specifies that all arguments to a function are not to be modified or looked at in any way in the process of evaluation.
MemoryConstrained[expr, b] evaluates expr, stopping if more than b bytes of memory are requested. MemoryConstrained[expr, b, failexpr] returns failexpr if the memory ...