Constant folding is one of the compiler optimization techniques used by many modern compilers. Constant folding is the process of simplifying constant expressions at compile time. Terms in constant expressions are typically simple literals, such as the integer 2, but can also be variables whose values are never modified, or variables explicitly marked as constant.

Constant propagation is one of the compiler optimization techniques used by many modern compilers. Constant propagation is the process of substituting the values of known constants in expressions at compile time. Such constants include those defined above, as well as intrinsic functions applied to constant values.

Constraint logic programming is a form of constraint programming, in which logic programming is extended to include concepts from constraint satisfaction. A constraint logic program is a logic program that contains constraints in the body of clauses. An example of a clause including a constraint is A(X,Y) :- X+Y>0, B(X), C(Y). In this clause, X+Y>0 is a constraint; A(X,Y), B(X), and C(Y) are literals like in regular logic programming. Intuitively, this clause tells one condition under which the statement A(X,Y) holds: this is the case if X+Y is greater than zero and both B(X) and C(Y) are true.

Constraint programming is a programming paradigm where relations between variables can be stated in the form of constraints. Constraints differ from the common primitives of other programming languages in that they do not specify a step or sequence of steps to execute but rather the properties of a solution to be found. The constraints used in constraint programming are of various kinds: those used in constraint satisfaction problems, those solved by the simplex algorithm, and others. Constraints are usually embedded within a programming language or provided via separate software libraries.

In artificial intelligence and operations research, constraint satisfaction is the process finding a solution to a set of constraints. Such constraints express allowed values for variables, and a solution is therefore an evaluation of these variable that satisfies all constraints.

A content management system is a computer software system for organizing and facilitating collaborative creation of documents and other content. For example, a content management system may be a web application used for managing websites and web content. They can also be used for storage and single sourcing of documentation for a firm including but not limited to operators' manuals, technical manuals, sales guides, etc.

Control panel refers to the front end of a system which can set the configuration of the system. For example, in a PC or a Macintosh, control panel is part of the operating system that has the ability to control an aspect of system configuration, such as the display, software add/remove, language and network properties.

Cooperative multitasking, also known as non-preemptive multitasking, is a form of multitasking where it is the responsibility of the currently running task to give up the processor to allow other tasks to run. This contrasts with pre-emptive multitasking where the task scheduler periodically suspends the running task and restarts another. Cooperative multitasking has the advantage of making the operating system design much simpler, but it also makes it less stable because a poorly designed application may not cooperate well, and this often causes system freezes.

Copy propagation, a optimization technique in the program compiler, is the process of replacing the occurrences of targets of direct assignments with their values. A direct assignment is an instruction of the form x = y, which simply assigns the value of y to x. Copy propagation is a useful "clean up" optimization frequently used after other optimizations have already been run.

Copycat refers to the tendency of humans to duplicate the behavior of others. Copycat is also the name of a model of analogy making and human cognition based on the concept of the parallel terraced scan, developed by Douglas Hofstadter, Melanie Mitchell, and others.