Most of the ILL's instruments are equipped with industry-standard VME crates for the acquisition electronics, motion control and general I/O devices. A consequent number of Nuclear Instrumentation Module (NIM) crates provides the high-quality power supplies required for all the motor drives and analog electronics. There are a f few exceptions, such as the small-scale instruments for which a complete PC-based solution combined with commercial controllers has been preferred to limit the cost of the installation. This high degree of standardization brings savings in maintenance, given the reduction in the number of spare parts required to guarantee rapid interventions in case of hardware problems. There is the additional advantage that the instruments all benefit simultaneously from development and upgrades.