List of Computer Term Etymologies - P

P

• Pac-Man — a video arcade game.

The term comes from paku paku which is a Japanese onomatopoeia used for noisy eating; similar to chomp chomp. The game was released in Japan with the name Puck-Man, and released in the US with the name Pac-Man, fearing that kids may deface a Puck-Man cabinet by changing the P to an F.

• PCMCIA — the standards body for PC card and ExpressCard, expansion card form factors.

The Personal Computer Memory Card International Association is an international standards body that defines and promotes standards for expansion devices such as modems and external hard disk drives to be connected to notebook computers. Over time, the acronym PCMCIA has been used to refer to the PC card form factor used on notebook computers. A twist on the acronym is People Can't Memorize Computer Industry Acronyms.

• PEBKAC - an acronym for "Problem Exists Between Keyboard And Chair", which is a code frequently used by a customer service representative (CSR) to annotate their notes and identify the source of a problem as the person who is reporting the problem rather than the system being blamed. This is a thinly veiled reference to the CSR's opinion that the person reporting the problem is the problem. Example: PEBKAC, no resolution possible. See also ID10T.

• Pentium — a series of microprocessors from Intel.

The fifth microprocessor in the 80x86 series. It would have been called i586 or 80586, but Intel decided to name it Pentium (penta = five) after it lost a trademark infringement lawsuit against AMD due to a judgment that numbers like "286", "386", and "486" cannot be trademarked. According to Intel, Pentium conveys a meaning of strength, like titanium.

Since some early Pentium chips contained a mathematical precision error, it has been jokingly suggested that the reason for the chip being named Pentium rather than 586 was that Intel chips would calculate 486 + 100 = 585.99999948.

• Perl — an interpreted scripting language.

Perl was originally named Pearl, after the "pearl of great price" of Matthew 13:46. Larry Wall, the creator of Perl, wanted to give the language a short name with positive connotations and claims to have looked at (and rejected) every three- and four-letter word in the dictionary. He even thought of naming it after his wife Gloria. Before the language's official release Wall discovered that there was already a programming language named Pearl, and changed the spelling of the name. Although the original manuals suggested the backronyms "Practical Extraction and Report Language" and "Pathologically Eclectic Rubbish Lister", these were intended humorously.

• PHP — a server-side scripting language

Originally called "Personal Home Page Tools" by creator Rasmus Lerdorf, it was rewritten by developers Zeev Suraski and Andi Gutmans who gave it the recursive name "PHP Hypertext Preprocessor". Lerdorf currently insists the name should not be thought of as standing for anything, for he selected "Personal Home Page" as the name when he did not foresee PHP evolving into a general-purpose programming language.

• Pine — e-mail client.

Many people believe that Pine stands for "Pine Is Not Elm". However, one of its original authors, Laurence Lundblade, insists this was never the case and that it started off simply as a word and not an acronym; his first choice of a backronym for pine would be "Pine Is Nearly Elm". Over time it was changed to mean Program for Internet News and E-mail.

• ping — a computer network tool used to detect hosts.

The author of ping, Mike Muuss, named it after the pulses of sound made by a sonar called a "ping". Later Dave Mills provided the backronym "Packet Internet Groper".

• Python — an interpreted scripting programming language.

Named after the television series Monty Python's Flying Circus.