vi. Point-and-click analog of type ahead. To manipulate a computer's pointing device (almost always a mouse in this usage, but not necessarily) and its selection or command buttons before a computer program is ready to accept such input, in anticipation of the program accepting the input. Handling this properly is rare, but it can help make a WIMP environment much more usable, assuming the users are familiar with the behavior of the user interface.
n. Like nethack and rogue, one of the large PD Dungeons-and-Dragons-like simulation games, available for a wide range of machines and operating systems. Extremely addictive and a major consumer of time better used for hacking.
prov. The observation that the logic density of silicon integrated circuits has closely followed the curve (bits per square inch) = 2(n - 1962); that is, the amount of information storable in one square inch of silicon has roughly doubled yearly every year since the technology was invented.