From the eeePC user guide: Transportation precautions:
The solid state disk drive's head retracts when the power is turned OFF to prevent scratching of the solid state disk drive surface during transport. Therefore, you should not transport the eeeP when the power is still ON.
FLASH read head? LOL.
Does it use CHS addressing? If so, how does it advance to the next sector if it's a (literally) "fixed" disk? ;-)
Tim
-- Deep Friar: a very philosophical monk. Website:
LOL. Search and replace "disk drive" -> "solid state disk drive" ? ;-) Best regards, Spehro Pefhany
-- "it\'s the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
There are no vacuum tubes in a hard drive, so it is a solid state device. ;-)
-- Regards, John Popelish
wot! no pulleys, gears, or water wheels? must be correct then. I read it on the web.
Don...
-- Don McKenzie Site Map: http://www.dontronics.com/sitemap E-Mail Contact Page: http://www.dontronics.com/email Xbee Wireless Modules, and low cost Interface Boards. http://www.dontronics-shop.com/xbee-boards.html
Someone told them that "solid state disk" means "small disk"?
-- Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" gives you just what it says. See details at http://www.wescottdesign.com/actfes/actfes.html
Is this really true even for the usual hard drives?
I routinely (carefully) transport my laptop while it's on. Bad idea?
Michael
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But it depends on a layer of non-solid air to fly the heads over the disks.
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Yes.
I've had a laptop with an accelerometer - it parks the heads when it senses acceleration.
-- John Devereux
Lack of acceleration, I should think. It would normally measure 1g (upward), but in free fall that would be just about exactly cancelled by the accleration of the laptop (downward) toward the floor.
Best regards, Spehro Pefhany
-- "it\'s the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
Maybe - it actually measured the direction as well as magnitude, IIRC. You could pick it up and turn it about, and I think there was a little picture of the laptop that followed the orientation. Can't remember exactly now, it came with vista which only lasted a couple of hours before I stuck linux on it.
-- John Devereux
Sure, probably a 3-axis acclerometer.
It may have done both- if the laptop was being jostled OR in free fall, then park the heads for a bit until the turbulence or weightlessness goes away for a while.
Just wait until they start making a $5 6-degree-of-freedom IMU-on-a-chip. Best regards, Spehro Pefhany
-- "it\'s the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
...and the computer i made with relays is also solid state...
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