info-mac@utcsrgv.UUCP (info-mac) (05/31/84)
Date: Tue 29 May 84 04:20:00-PDT From: Janet Coursey <uw-beaver!JVC@SU-SCORE.ARPA> Subject: Warning: telephone trashes disks To: info-mac@SUMEX-AIM.ARPA Jaron Lanier told me, and an EE friend confirmed, that the electro-magnetic field established by the ringing of a telephone bell is strong enough to alter the data content of a disk (apple, hp, memorex, or other). Disks have become unreadable due to this effect. So if your phone sits adjacent to your disk storage box, move one of them. Janet -------
info-mac@utcsrgv.UUCP (info-mac) (06/02/84)
Date: 31 May 1984 05:06-EDT From: Jerry E. Pournelle <uw-beaver!POURNE@MIT-MC> Subject: Warning: telephone trashes disks To: JVC@SU-SCORE Cc: info-mac@SUMEX-AIM In-Reply-To: Msg of Tue 29 May 84 04:20:00-PDT from Janet Coursey <JVC at SU-SCORE.ARPA> Good advice. Telephone bell can wipe out 8" and 5 1/4"; I see no reason why it cannot get a vest pocket disk too.