4 ms·
Why would you need nonvolatile storage for that? Why not just store it in RAM temporarily?
by randrews 16y ago
Why would you need nonvolatile storage for that? Why not just store it in RAM temporarily?
- tedunangst 16y agoA hard drive could be cheaper than the amount of RAM required to store 20 pages of uncompressed scans.
- randrews 16y agoIf it's only 20 pages, I'd actually guess not. HDD + controller, for a minimum of (say) a 20 gig drive (I couldn't find any smaller ones), I'd guess would be a lot more than the extra hundred megs (tops) in the RAM that it already needs to have anyway. So it only makes sense to have a drive if you want to store a LOT more images than 20. Maybe it needs a drive anyway for some other reason (like the software that runs it lives there instead of on a CF card or something), so it ends up being cheaper and easier that way?
- Daniel_Newby 16y ago100 megs? A single letter-size sheet is 30 megs at 600 ppi.
- randrews 16y agoOkay, so 600 megs. An extra gig of RAM has to be cheaper than a hard drive + controller you wouldn't otherwise need, right?
- Daniel_Newby 16y agoMany people occasionally copy/print multi-hundred page documents. That runs to many gigs of RAM, $30 just for the DRAM chips. And then you need to design what amounts to a custom PC motherboard to talk to them. The price could easily run to $75, not counting the enormous engineering costs. Or you buy a $40 ATA drive and connect it to your embedded processor's built-in interface.