Related:

• yoyo mode n. The state in which the system is said to be when it rapidly alternates several times between being up and being down.
  Interestingly (and perhaps not by coincidence), many hardware vendors give out free yoyos at Usenix exhibits....
• YOYO MODE n. State in which the system is said to be when it rapidly alternates several times between being up and being down.
  -- From the AI Hackers' Dictionary...
• casters-up mode: [IBM, prob. fr. slang belly up] n.
  Yet another synonym for `broken' or `down'. Usually connotes a major failure....
• peedometer: n. A pattern of lights displayed on a linear set of LEDs (today) or nixie tubes (yesterday, on ancient mainframes).
  The pattern is shifted left every N times the operating system goes through its {main loop}....
• demo mode: [Sun] n. 1. The state of being {heads down} in order to finish code in time for a {demo}, usually due yesterday.
  2. A mode in which video games sit by themselves running through a portion of the game, also known as `attract mode'....
• hack mode n. 1. What one is in when hacking, of course.
  2. More specifically, a Zen-like state of total focus on The Problem that may be achieved when one is hacking (this is why every good hacker is part mystic)....
• bug n. An unwanted and unintended property of a program or piece of hardware, esp.
  one that causes it to malfunction. Antonym of feature....
• ack n. The set of things a person has to do in the future.
  One speaks of the next project to be attacked as having risen to the top of the stack....
• PDP-20: n. The most famous computer that never was.
  {PDP-10} computers running the {{TOPS-10}} operating system were labeled `DECsystem-10' as a way of differentiating them from the PDP-11....