Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the best-selling Take Control ebooks.

 

 

Pick an apple! 
 
Set Password Activation Time in Snow Leopard

In Snow Leopard, you can now set an amount of time after your Mac goes to sleep or engages the screen saver before it requires a password to log back on. In Leopard, the option was simply to require the password or not. Choose among several increments, between 5 seconds and 4 hours, from System Preferences > Security.

Submitted by
Doug McLean

 
 

Math Bug Confirmed in Pentium Chips

Send Article to a Friend

Math Bug Confirmed in Pentium Chips -- Earlier this month, reports of a floating point division bug in Intel's Pentium chip began to surface on CompuServe and in Usenet newsgroups such as <comp.sys.intel>. Mathematics professor Thomas Nicely of Lynchburg College in Virginia is generally credited with the first public announcement of the bug, which Intel claims to have discovered as early as June.

The bug - involving double-precision floating point divide operations - occurs once in every 9 or 10 billion divides and seems unlikely to affect the average user. However engineers, analysts, and others who bought Pentium systems as a substitute for high-priced workstations have expressed genuine concern.

Intel claims to have corrected the problem in currently shipping Pentium chips, but there are no part-number changes or other markings on the corrected chip. According to the 21-Nov-94 issue of Electronic Engineering Times, Intel indicates they will replace the part if customers are concerned. However, Intel is apparently not planning to upgrade existing Pentiums or inform their customers. In the meantime, programs are circulating which determine if the bug is present on a given machine. [GD]

Intel Technical Support -- 800/628-8686

http://www.wais.com:80/techweb/eet/current/ default.html

 

CrashPlan is easy, secure backup that works everywhere. Back up
to your own drives, friends, and online with unlimited storage.
With 30 days free, backing up is one resolution you can keep.
Your life is digital; back it up! <http://tid.bl.it/code42-tb>