ReBoot

Info:

The series follows the adventures of a Guardian named Bob and his companions Enzo and Dot Matrix as they work to keep the computer system of Mainframe safe from the viruses known as Megabyte and Hexadecimal. The setting is in the inner world of a computer system known by its inhabitants as Mainframe. It was deliberately chosen due to technological constraints at the time, as the fictional computer world allowed for blocky looking models and mechanical animation