It is necessary to find the golden mean in allocating the processing r
esources of a computer control system. Traditionally, feedback loops o
perate at the lower levels to ensure safe and stable operation of the
accelerator. At present we use analogue and digital feedback loops. So
me systems, such as the RF, require more complex algorithms. A possibl
e way of providing these, using digital signal processors is described
. The results of tests with the Race-Track Microtron Linac are given a
nd the sources of the main internal and external disturbances have bee
n analysed.