|
| |
DMA - Direct Memory Access
This can be thought of as a channel or line that is used by devices in the computer to access the memory (RAM) without having to utilise the CPU. It works by allowing the I/O controller that has been previously instructed to transfer a block of data (the size depending on the system) to or from the memory to temporarily control the memory itself by returning the memory address of the data, it can control the memory for as many clock cycles as is required for the process. This system can significantly reduce the workload on the CPU.
© Copyright 2001-2008 helpwithpcs.com
Back to Computer Dictionary
|
| site sponsors |
|
|
|
|
