1.)Dealing with important files? Try giving FileVault a try. It automatically encrypts and decrypts your files on the fly when you use them. Head into System Preferences -> Security -> FileVault to activate it.
2.)Got a laptop? Wanna know a little more about your battery life? Go to: Apple Menu -> About this Mac, then click on more
info. This will bring up the System Profiler. Then select Hardware from the list on the left, then choose the power sub menu. Once there, scroll to the bottom to view detailed results. You will be able to see such things as Cycle count(number of times charged and discharged) Battery health,Manufacturer, and Voltage.
3.) Having some problems with your mac? Try zapping your P-Ram, you would be surprised what it can do. apple-option-p-r on start up.
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streaming services such as last.fm and now iTunes movie service. While this isn’t anything thats brand new; Bell Comm. of Canada is currently using a pay per gig system similar to the one here. It doesn’t seem to be catching on. To me, this seems to be a huge step backwards and reminds me of the Dial-up era.( Limited use at ridiculously high prices)