At one time phreaking was a semi-respectable activity among hackers; there was a gentleman's agreement that phreaking as an intellectual game and a form of exploration was OK, but serious theft of services was taboo. There was significant crossover between the hacker community and the hard-core phone phreaks who ran semi-underground networks of their own through such media as the legendary `TAP Newsletter'. This ethos began to break down in the mid-1980s as wider dissemination of the techniques put them in the hands of less responsible phreaks. Around the same time, changes in the phone network made old-style technical ingenuity less effective as a way of hacking it, so phreaking came to depend more on overtly criminal acts such as stealing phone-card numbers. The crimes and punishments of gangs like the `414 group' turned that game very ugly. A few old-time hackers still phreak casually just to keep their hand in, but most these days have hardly even heard of `blue boxes' or any of the other paraphernalia of the great phreaks of yore.

:pico-: [SI: a quantifier
meaning * 10^-12]
pref. Smaller than {nano-}; used in the same rather loose
connotative way as {nano-} and {micro-}. This usage is not yet
common in the way {nano-} and {micro-} are, but should be
instantly recognizable to any hacker. See also {{quantifiers}},
{micro-}.

:pig, run like a: v. To run very slowly on given hardware, said of software. Distinct from {hog}.

:pilot error: [Sun: from aviation] n. A user's misconfiguration or misuse of a piece of software, producing apparently buglike results (compare {UBD}). "Joe Luser reported a bug in sendmail that causes it to generate bogus headers." "That's not a bug, that's pilot error. His `sendmail.cf' is hosed."

:ping: [from the TCP/IP acronym `Packet INternet Groper', prob. originally contrived to match the submariners' term for a sonar pulse] 1. n. Slang term for a small network message (ICMP ECHO) sent by a computer to check for the presence and aliveness of another. Occasionally used as a phone greeting. See {ACK}, also {ENQ}. 2. vt. To verify the presence of. 3. vt. To get the attention of. From the UNIX command `ping(1)' that sends an ICMP ECHO packet to another host. 4. vt. To send a message to all members of a {mailing list} requesting an {ACK} (in order to verify that everybody's addresses are reachable). "We haven't heard much of anything from Geoff, but he did respond with an ACK both times I pinged jargon-friends." 5. n. A quantum packet of happiness. People who are very happy tend to exude pings; furthermore, one can intentionally create pings and aim them at a needy party (e.g. a depressed person). This sense of ping may appear as an exclamation; "Ping!" (I'm happy; I am emitting a quantum of happiness; I have been struck by a quantum of happiness). The form "pingfulness", which is used to describe people who exude pings, also occurs. (In the standard abuse of language, "pingfulness" can also be used as an exclamation, in which case it's a much stronger exclamation than just "ping"!). Oppose {blargh}.

The funniest use of `ping' to date was described in January 1991 by Steve Hayman on the USENET group comp.sys.next. He was trying to isolate a faulty cable segment on a TCP/IP Ethernet hooked up to a NeXT machine, and got tired of having to run back to his console after each cabling tweak to see if the ping packets were getting through. So he used the sound-recording feature on the NeXT, then wrote a script that repeatedly invoked `ping(8)', listened for an echo, and played back the recording on each returned packet. Result? A program that caused the machine to repeat, over and over, "Ping … ping … ping …" as long as the network was up. He turned the volume to maximum, ferreted through the building with one ear cocked, and found a faulty tee connector in no time.

:Pink-Shirt Book: `The Peter Norton Programmer's Guide to the IBM PC'. The original cover featured a picture of Peter Norton with a silly smirk on his face, wearing a pink shirt. Perhaps in recognition of this usage, the current edition has a different picture of Norton wearing a pink shirt. See also {{book titles}}.

:PIP: /pip/ [Peripheral Interchange Program] vt.,obs. To copy; from the program PIP on CP/M, RSX-11, RSTS/E, TOPS-10, and OS/8 (derived from a utility on the PDP-6) that was used for file copying (and in OS/8 and RT-11 for just about every other file operation you might want to do). It is said that when the program was originated, during the development of the PDP-6 in 1963, it was called ATLATL (`Anything, Lord, to Anything, Lord'; this played on the Nahuatl word `atlatl' for a spear-thrower, with connotations of utility and primitivity that were no doubt quite intentional).

:pistol: [IBM] n. A tool that makes it all too easy for you to
shoot yourself in the foot. "UNIX `rm *' makes such a nice
pistol!"

:pizza box: [Sun] n. The largish thin box housing the electronics
in (especially Sun) desktop workstations, so named because of its
size and shape and the dimpled pattern that looks like air holes.