Geek Code

The Geek Code, developed in 1993, is a series of letters and symbols used by self-described "geeks" to inform fellow geeks about their personality, appearance, interests, skills, and opinions. The idea is that everything that makes a geek individual can be encoded in a compact format which only other geeks can read. This is deemed to be efficient in some sufficiently geeky manner.
It was once common practice to use a geek code as one's email or Usenet signature, but the last official version of the code was produced in 1996, and it has now largely fallen out of use.
History.
The Geek Code was invented by Robert A. Hayden in 1993 and was defined at geekcode.com. It was inspired by a similar code for the bear subculture - which in turn was inspired by the Yerkes spectral classification system for describing stars.
After a number of updates, the last revision of the code was v3.12, in 1996.
Some alternative encodings have also been proposed. For example, the 1997 Acorn Code was a version specific to users of Acorn's RISC OS computers.
Format.
Geek codes can be written in two formats; either as a simple string:<br>
 GED/J d-- s:++>: a-- C++(++++) ULU++ P+ L++ E---- W+(-) N+++ o+ K+++ w--- O- M+ V-- PS++>$ PE++>$ Y++ PGP++ t- 5+++ X++ R+++>$ tv+ b+ DI+++ D+++ G+++++ e++ h r-- y++** 
...or as a "Geek Code Block", a parody of the output produced by the encryption program PGP:<br>
 -----BEGIN GEEK CODE BLOCK-----
 Version: 3.1
 GED/J d-- s:++>: a-- C++(++++) ULU++ P+ L++ E---- W+(-) N+++ o+ K+++ w---
 O- M+ V-- PS++>$ PE++>$ Y++ PGP++ t- 5+++ X++ R+++>$ tv+ b+ DI+++ D+++
 G+++++ e++ h r-- y++**
------END GEEK CODE BLOCK------
Note that this latter format has a line specifying the version of Geek Code being used.
Encoding.
Occupation.
The code starts with the letter codice_1 (for Geek) followed by the geek's occupation(s): codice_2 for a geek of music, codice_3 for a geek of computer science etc. There are 28 occupations that can be represented, but codice_4 is for geeks that can do anything and everything - and "usually precludes the use of other vocational descriptors".
Categories.
The Geek Code website contains the complete list of categories, along with all of the special syntax options.
Decoding.
There have been several '"decoders" produced to transform a specific geek code into English, including:
See also.
"Geek life style"