The aim of this article is to highlight and discuss two problems of the biological philosophy of technology. In particular, I will analyse the work of André Leroi-Gourhan and Gilbert Simondon, and I will show that the meaning of the analogy between technical and natural objects that underlies the approach of the biological philosophy of technology remains problematic and the biological approach to technology is very effective for analysing tools and machines, but is not sufficient to describe the so-called information (...) technologies. In the last part of the article, I will argue that, in order to understand information technologies, it is necessary to integrate the biological approach to technology with a grammatological approach. I will try to show that, next to the tool and the machine, there is a third category of technical objects that can be better described using the notion of “writing” proposed by one of the masters of the so-called French Thought, Jacques Derrida. (shrink)