Printed Circuit Board (B&W) fabric by leighr on Spoonflower - custom fabric
Blue pattern | Mary Katrantzou Fall 2014
high technology printed circuit board with glowing LED lights Stock Photo
Circuit board screen print - Arduino Uno - limited edition on Etsy, $30.00
Circuit Board imagery for pattern and drawing inspiration (Cora Clarke for Zine Brief)
Circuit Board Technology Photograph - Circuit Board Technology Fine Art Print
#3 Responsibilities of computer engineering are to test and make sure computers hardrives are good.
The western and eastern façades of the Digital Beijing Building replicate the look of an integrated circuit board. - Image - Design Build Network
I also think that this symbol, City vs. Nature, represents the way technology is used in the book. For example, the mechanical hound that the firemen use represents the lack of nature in the city.
Google Image Result for http://www.hubbardhall.com/Collateral/Images/English-US/printed-circuit-board.jpg