4 ms·
Physical switch could be done with a very small magnet behind the lid surface and an opposed micro-reed switch (or other magnetically actuated on/off device) b
by ridgeguy 8y ago
Physical switch could be done with a very small magnet behind the lid surface and an opposed micro-reed switch (or other magnetically actuated on/off device) buried behind the body surface. No surface penetrations, no exposed moving parts (reed relays are hermetically sealed).
- djrogers 8y agoAnd a magnetic switch is far too easily defeated
- jws 8y agoMy parent’s table pads do precisely that. After a particularly baffling family tech support call I drove over. Their kitchen table pads magnetically lock to stay nicely aligned, and also either put a laptop to sleep, or keep it awake when closed depending how you place them.
- bdamm 8y agoHow? The point is to prevent invisible eavesdropping not prevent some spook on the table from hacking you.
- brirec 8y agoReed switches are pretty damned huge when working at the scale of a laptop. Not to mention it would make the case of the computer microphonic — bump it hard enough and that’ll be transmitted through the reed relay.
- ridgeguy 8y agoYeah, I agree. Reed switches might even resonate with music played through laptop speakers. This needs a no-moving-parts magnetic sensor.