DNA is digital, but a different coding structure: base 4, instead of base 2, so the storage is different. For the computer, there are two possibilities for one switch; two switches allow 8 possibilities, and on up in a geometric progression. For DNA, a single rung on the ladder allows 4 possibilities; two rungs, 64 possibilities. the DNA code allow many more possibilities per unit than the computer. The helical arrangement of DNA also implies analogical structures that computers can only emulate through software design--the digital aspect of DNA may not mean what we think it means.
Neurologically, there is a similar mixture of digital and analogue in receptors/connectors with more than simple on/off digital, and the formation of wave formations in the brain. Cognitively, we make very different decisions than binary based digital decision processes predict.
If everything is to be transformed to a simple binary digital foundation, that binary foundation will have lost underlying structure in the process.