caching(The process of temporarily storing recently accessed information in a special memory subsystem for quicker access); spooling(A process on a server in which print documents are stored on a disk until a printer is ready to process them. A spooler accepts each document from each client, stores it, then sends it to a printer when the printer is ready)
buffer(To use a region of memory to hold data that is waiting to be transferred, especially to or from input/output (I/O) devices such as disk drives and serial ports)
