Definitions for "Instruction Cache"
The Instruction Cache is a warehouse of instructions right on the chip, so that the microprocessor doesn't have to stop and look in the computer's main memory for instructions. This quick access makes processing fast as instructions are "fetched" to the Prefetch Unit where they are put in the proper order for processing.
(n.) a cache memory that holds only instructions but not data.
Memory used to hold frequently accessed instructions.