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- Path: sparky!uunet!olivea!spool.mu.edu!uwm.edu!ogicse!news.u.washington.edu!glia!crystal
- From: crystal@glia.biostr.washington.edu (Crystal)
- Newsgroups: comp.sys.amiga.misc
- Subject: Re: WHAT is THIS?! (bizarre error)
- Message-ID: <crystal.716515432@glia>
- Date: 15 Sep 92 00:03:52 GMT
- References: <kehBjuG00WB_0b24UB@andrew.cmu.edu>
- Sender: news@u.washington.edu (USENET News System)
- Organization: University of Washington
- Lines: 49
-
- In <kehBjuG00WB_0b24UB@andrew.cmu.edu> Steve Neas <sn15+@andrew.cmu.edu> writes:
-
- >>In article <9209131139.AA23562@ucbvax.Berkeley.EDU> z3kpw@TTACS1.TTU.EDU
- >> ("Wheeler, Kevin") writes:
- >>>Argh. The weirdest thing happened yesterday. I was trying to connect an
- >>> audio cable behind my Amiga setup and in the process I wiggled the monitor
- >>> cable amongst the nest of cables.
- >>>The screen become "garbled" and the 'puter locked up, so I had to reboot.
- >>>Lo and behold, BOTH of the disks in my floppy drives had been corrupted!
- >>>So if anyone can please tell me a) what the hell happened
- >>>
- >>>I've had heaps of experience with Apple IIs, IBM PCs and Macintoshes for
- >>>10 years and nothing like this has ever happened. Guess it is true,
- >>>"Only Amiga makes it possible." Argh.
- >>>
- >>
- >>What happened is that you decided to hook a device up to a computer while it
- >>was powered up. Not a very smart thing to do, and you probably deserve what
- >>happened.
-
- >I've heard this warning many times (and occasionally not heeded it).
- >So what would this actually do to harm the computer?
-
- >Just curious,
- > -Steve-
- >sn15@andrew.cmu.edu
-
- I think it causes a power spike of some sort. (Sort of a mini-surge) Ever
- notice the sparks fly from the plug/wall socket when you forget to turn the
- vacuum cleaner off before unplugging it? Same thing, but to a minor degree.
- Computer chips are extremely sensitive to abrupt voltage changes since most
- commands are simply combinations of ON/OFF electrical impulses. When you
- disrupt a cable to any i/o device, the computer will detect the change and
- ignore it, or get angry and get even. (I think it's part of the union contract
- between inanimate objects)
-
- I have noticed that IBM's and Apple ][+'s seem to be less vulnerable to
- simple monitor cable switching (used to do it all the time with mine on),
- but the Amiga is *extremely* sensitive to such things - like even the modem
- being on when it gets unplugged (my IBM clone - no problem) but on Ami - I
- thought I killed the serial port. Again, rebooting was all that was needed
- to clear the stray "command" out of the circuit, but *geez* I gotta be more
- CAREFUL!
-
- So there's the non-compu-nerd version of Computer Science... (See Larry Gonick's
- books for more detailed information! *grin* I've learned a lot from him!)
-
- Crystal
- ;>
-