caster

n : a pivoting wheel attached to the bottom of furniture or

trucks or portable machines to make them movable [syn: {castor}]

cluster

An elementary unit of allocation of a disk made

up of one or more physical {blocks}.

A {file} is made up of a whole number of possibly

non-contiguous clusters. The cluster size is a tradeoff

between space efficiency (the bigger is the cluster, the

bigger is on the average the wasted space at the end of each

file) and the length of the {FAT}.

(1996-11-04)