domingo, 22 de abril de 2012

[DPS Lab] Extra Points 2

  • Transition: The process of change from one form, state, style or place to another.
  • Event: Is an action that is usually initiated outside the scope of a program and that is handled by a piece of code inside the program. Typical sources of events include the user (who presses a key on the keyboard, in other words, through a keystroke).
  • Execution: Is the process by which a computer or a virtual machine carries out the instructions of a computer program. The instructions in the program trigger sequences of simple actions on the executing machine. Those actions produce effects according to the semantics of the instructions in the program.
  • Graph: Is an abstract representation of a set of objects where some pairs of the objects are connected by links. The interconnected objects are represented by mathematical abstractions called vertices, and the links that connect some pairs of vertices are called edges.
  • Interrumption: Is an asynchronous signal indicating the need for attention or a synchronous event in software indicating the need for a change in execution. A hardware interrupt causes the processor to save its state of execution and begin execution of an interrupt handler. Software interrupts are usually implemented as instructions in the instruction set, which cause a context switch to an interrupt handler similar to a hardware interrupt.
  • Node: A vertex (plural vertices) or node is the fundamental unit out of which graphs are formed: an undirected graph consists of a set of vertices and a set of edges (unordered pairs of vertices), while a directed graph consists of a set of vertices and a set of arcs (ordered pairs of vertices).
  • Disallow: Deny the access or use of something.
  • Condition: Is a feature of a programming language which perform different computations or actions depending on whether a programmer-specified boolean condition evaluates to true or false. Apart from the case of branch predication, this is always achieved by selectively altering the control flow based on some condition.
  • Input: Any data entered into a computer or data processing system,
  • Reachable: Be able to touch or take something with our arms
  • Precise: Is a measure of the detail in which the quantity is expressed. This is usually measured in bits, but sometimes in decimal digits. It is related to precision in mathematics, which describes the number of digits that are used to express a value.

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