Cache

English (en)

Cache
In computing, a cache is high-speed 
data storage layer which stores a 
subset of data, typically transient 
in nature, so that future requests 
for that data are served up faster 
than is possible by accessing the 
data's primary storage location. It 
is a small amount of faster, more 
expensive memory used to improve the 
performance of recently or frequently 
accessed data.