3 ms·
Why won't disabling features which give easy access to ram work?
by nodata 15y ago
Why won't disabling features which give easy access to ram work?
- willvarfar 15y agoIt would have to be disabling by omission. I've seen dumb terminals for military networks that simply don't have any slots for any peripherals. Which means staff go to great lengths to work around these limitations and basically open everything up and email documents to their hotmail account so they can print them off elsewhere etc.
- Derbasti 15y agoBecause the point of DMA is to give fast access to RAM without involving the CPU. That is what makes the speed of Firewire or PCMCIA or Thunderbolt or PCIE feasible. Without DMA, these technologies would not work. Also, the password needs to be stored in memory and accessible by DMA, since you would not be able to use it without having it readily available.