Your have access to a network of 512 Nodes (768 with Negentropy) that can be used for several purposes. For every 16 unallocated nodes, your thinking speed is increased by 25% additively.
Nodes can be used to store approximately 2.5 PB (petabytes) of information, this includes memories. One Node is sufficient to store a perfect snapshot of your brain.
Nodes also be grouped into a Module, this allows them to be programmed to perform various functions like keeping track of time, automatically creating a backup of your brain, process your vision to parse any text and store it in a node, and more. If it can be done with a computer, it can be done with a module. One node has roughly the same processing power as a high end server.
You can also use Nodes to create a Cluster, this allows them to host Thinker powers. A power uses a number of nodes equivalent to the square of its rating (Thinker 2 takes 4 Nodes, Thinker 3 takes 9 Nodes, and so on). Your maximum rating is 9. The powers can only use information gathered from your own senses, including any power granted senses.