Blitter

• abstract: In a computer system, a blitter is a circuit, sometimes as a coprocessor or a logic block on a microprocessor, that is dedicated to the rapid movement and modification of data within that computer's memory. A blitter is capable of copying large quantities of data from one memory area to another relatively quickly, and in parallel with the CPU, whilst freeing up the CPU's more complex ISA for more general operations.

以上来源于: WordNet