Glossary:RISC
RISC or Reduced Instruction Set Computer is a computer architecture in which the basic machine instructions are very simple and so can be implemented cheaply. Although more instructions may be needed for a given task, they can be made to run very fast and the silicon saved can be used for other optimisations such as large cache memories to speed up execution. The result can be a significant net gain in performance. ARM is the most widely used example of this architecture.