A few years ago a friend was showing me his tattoos at a geeky event I organized. He turned around, pulled down his collared shirt -- and my eyes popped out of my skull. He had a DB-9 port tattooed to the back of his neck. He then proceeded to show me other parts of his body as that wasn’t his only “geeky” tattoo. A few months later I met a friend’s wife who had her name tattooed on her arm -- in binary code. It wrapped her arm like a bracelet of ones and zeros. These geeky tattoos were few and far between, so I went in search of tattoos of the geeky kind. Here's a tour of some of my favorites.

The Transistor

As I mentioned, the first geeky tattoo I saw was on the body of my friend, Eric Gradman. He’s the one with the DB-9 port on the back of his neck. “I got this tattoo at a time when lots of people were getting barcodes on the back of their necks. I have a bit of an aversion to permanent numeric ID markers.”

He tells the story of how he got another one. “I'd been drinking at Zeitgeist in San Francisco for about 7 hours when we decided to get tattoos. Transistors are in every piece of electronics we use and their discovery revolutionized the world. Nobody really uses BJT transistors anymore; they use FETs (which use a different schematic symbol) but the BJT symbol is so classy. Even hippies smile when they see it, mistakenly believing that it stands for world unity.”

011000100110100101101110011000010111001001111001

I’ll bet you know what language the above is–- but I’ll also bet you can’t read it (hint). Lots of people get binary tattoos with their name or special words. The only problem with binary is the quantity of ones and zeros. After researching geeky tattoos on Flickr, I found some very simple binary art that I particularly liked. “I am a geeky person," explains Robert Maki, whose body it belonged to. "Since I love computers and people call me a geek, I decided to get it tattooed on me, in the most primal language of computers.”

Love in 3D

Meg Watcher's tech-head body art is also some that I stumbled across on Flickr. She has a traditional Mom and Dad in a heart on her arm –- with one very cool twist -- it’s tattooed in 3D red/blue lines. “I really liked the look of old-school offset red and blue 3D drawings and wanted to get it done in tattoo form,” Meg told me. I got out my 3D glasses (which I have on my desk) and spied it through the blue and red shades -- and it looked pretty good. If you have a pair of shades, get em out and see for yourself.

Showing the <3

A friend of a friend of mine (thanks for introducing us Joz), Ed Morita, writes a blog on baking and his pastry creations make my mouth water. Earlier this year, Morita asked his readers to help him decide where to get a tattoo featuring the Wordpress logo. “I have been a blogger in some form or another since 2004, and five years is a long time to be using any sort of brand. WordPress has been a big part of my life, and like other big things in my life I think that it is time for me to get inked.” (See photo.)

My Bar Camp LA buddy Jason Cosper wanted to show his love for Apple but only to fellow Apple lovers. “Why get an Apple logo when you can get something that the really hardcore people will get? Also, it's easier to explain it away as a simple Celtic knot when people I don't want to talk to ask about it.” (See photo.)

Fellow Bar Camper Jeremy Kitchen has two Linux tattoos. His first is the classic penguin, “Tux” holding a sign that reads “1337.”

“I was 19, wanted a tattoo, was very gung-ho about Linux, and thought it might be cool.” Last month, he convinced co-worker Terri Haber to join him in his second Linux themed tattoos. His image of choice: Tuz -- the new Linux logo, which was changed to bring awareness to a rare disease that kills Tasmanian Devils.

Time traveling

Our final geek tattooist comes inked with so much good stuff I don’t know where to start. How about with the inside lip tattoo of “geek” (showcasing his inner geek!). What about the yin/yang Tron circuitry on his forearms? The Atari console with green screen and punch cards? The Flux Capacitor? And I can’t forget the Logan’s Run Jewel on his palm? I’d like to introduce fellow SG member: FEJ

In homage to his Dad, FEJ has a complicated tattoo of an Atari console, punch cards, green screen and Dad tattooed in 8-bit binary on his arm.

“Dad had punchcards around the office when I was a kid. I remember seeing them and wondering about them, and as I got older, admiration for him being able to use them in the early days of programming. He worked for Rockwell which made the eProms for the Atari and Activision game cartridges. We had a modified 'Adventure' cartridge with s eProm quick release that allowed us to change games that way. We got games almost a year before they were released.”

And the Flux Capacitor? “One day it just popped into my head (I didn't fall and hit my head on the sink) and knew. Those that know what it is always point it out.”

My favorite of all the tattoos in this article is FEJ's Logan’s Run palm jewel. In this future world, to combat overpopulation and consumption, everyone reaching a certain age is killed. “When someone turned 29, the jewel in their palm glowed and they are supposed to go to 'Carousel' and ultimately be executed in the ceremony. Those that fought the system became 'Runners' and went looking for 'Sanctuary.' I like to think of myself as a 'Runner' on the constant spiritual journey looking for 'Sanctuary'”

Heathervescent is a writer, technology consultant and agent of cacophony. She was unable to find a tattoo of Cronenberg’s back port from eXistenZ and was constantly distracted by this collection of the worst Unicorn tattoos! You can read more of her adventures at heathervescent.com and follow her @heathervescent