资料来源 : Free On-Line Dictionary of Computing

Translation Look-aside Buffer
     
         (TLB) A table used in a {virtual
        memory} system, that lists the {physical address} {page}
        number associated with each {virtual address} {page} number.
        A TLB is used in conjunction with a {cache} whose tags are
        based on virtual addresses.  The virtual address is presented
        simultaneously to the TLB and to the cache so that cache
        access and the virtual-to-physical address translation can
        proceed in parallel (the translation is done "on the side").
        If the requested address is not cached then the physical
        address is used to locate the data in main memory.  The
        alternative would be to place the translation table between
        the cache and main memory so that it will only be activated
        once there was a cache miss.
     
        (1995-01-30)