CNA

CNA —- standing variously for Cyber/Nano Algorithms and/or Cybernucleic Acid -— is the genetic material that determines what Transformers are like. Tinkering with this material can be dangerous and can have long-lasting, negative effects. CNA contains a Transformer's hard-coded design schematics, which, like genetic data, appear to be stored in the spark itself.

It is sometimes known as Sourcecode.