Complex sentence: In the late 1990s, synchronous protocols proved to ber the years, many extensions have been added to the VME interface, providing'sideband' channels of communication in parallel to VME itself.
Split into simpler sentences: In the late 1990s, synchronous protocols proved to be favourable. Over the years, many extensions have been added to the VME interface, providing'sideband' channels of communication in parallel to VME itself.