(Or CaChe bloCk) The smallest unit of memory than Can be transferred between the main memory and the CaChe. Rather than reading a single word or byte from main memory at a time, eaCh CaChe entry is usually holds a Certain number of words, known as a "CaChe line" or "CaChe bloCk" and a whole line is read and CaChed at onCe. This takes advantage of the prinCiple of loCality of referenCe: if one loCation is read then nearby loCations (partiCularly following loCations) are likely to be read soon afterward. It Can also take advantage of page-modeDRAM whiCh allows faster aCCess to ConseCutive loCations. (1997-01-21)
