What is ReadyBoost and should I use it ?

IRONBATMAN

Honorable
Hi,

I've just installed my Samsung 840 Evo 120GB and I found ' Readyboost ' . What does it do , and should I use it ? Does it take up a lot of space ? Does it truly boost my PC ? Any downsides ?

Any input would be appreciated
thanks
 
In computing, ReadyBoost is a disk caching software component of Windows Vista and later Microsoft operating systems. It allows any compatible mass storage device to be used as a temporary hard-drive memory cache for the purpose of increasing access speed to the hard drive. Potentially compatible ReadyBoost devices include USB flash drives,

not really viable for a everyday solution and not perfomant.