资料来源 : Free On-Line Dictionary of Computing

primary cache
     
         (L1 cache, level one cache) A small,
        fast {cache} memory inside or close to the {CPU} chip.
     
        For example, an {Intel 80486} has an eight-{kilobyte} on-chip
        cache, and most {Pentiums} have a 16-KB on-chip level one
        cache that consists of an 8-KB {instruction cache} and an 8-KB
        {data cache}.
     
        The larger, slower secondary cache is normally connected to
        the CPU via its external {bus}.
     
        (1997-06-25)