苹果出的产品总是会引起风潮，就像最近热火的iphone手机一样。它的销售和品牌创造了计算机领域的一个神话，将fasion带进了一个古板的技术领域，有一批狂热的粉丝。我也喜欢苹果的东西，从电脑到手机，简直就是生活的一部分，而且我的工作也和他们紧紧联系在一起，哪天它们瘫痪了，我的日程和工作也无法进行，也需彻底放假。

可是我的Mac机总是给我点状况，刚4个月的时候，也就是在雪豹系统出来没两天，就系统瘫痪，怎么也无法安装原先的旧系统，苹果专卖店无奈给我免费升级到雪豹，还开玩笑说这个电脑智能知道升级了，所以非升不可哦！

在用到一年半的时候，也就在前2天，电脑陷入循环的关机状态，怎么也开不了机。换了个键盘面，总算是好了。

今天，电脑又进入蓝屏状态，又启动不了了。 真是欲哭无泪，我明天下午还要演示呢？于是利用iphone在网上搜索相关事宜，自己倒腾了2下，现在算是可以启动了。

如果你是苹果机用户，这些日常维护的小知识可能会对你有帮助。虽然我的这个机器问题多多，可是要选择的话，我还是会用mac机，因为市场还没有可以替代它的产品。所以一个小建议，就是购买苹果的2年保修计划，虽然当时多花了点钱，可是会让你很安心。

Slow operation and generally unusual behavior are signs that may indicate that permissions need to be repaired on your Macintosh's hard drive. To do so you can run Repair Disk Permissions from within Disk Utility, located on your hard drive at: Applications/Utilities/Disk Utility
Note: There is no need to verify permissions before you repair them. Unless you can read the report and understand what Disk Utility proposes to do, there is little point in verifying first.
Open Disk Utility, and on the left side of the screen select your hard drive, then select the First Aid tab on the right side and click on "Repair Disk Permissions."
5) DO A FILE SYSTEM CHECK AND REPAIR DISK
I recommend that you occasionally restart your Mac, and hold down the Shift key right after the startup chime is played, and keep it held down until the spinning black bar cursor appears.

This procedure invokes what Apple calls a "Safe Boot":
and your Mac will report that it has been booted (started up) into Safe Boot mode. During startup in Safe Boot mode your Mac will do a file system check, entirely in the background, with no working status indicated, or report generated, and any problems will automatically be repaired.

11) REBUILD MAIL’S DATABASE AND BACK UP YOUR EMAIL
Periodically deleting old, unwanted e-mail messages, and rebuilding Mail’s database, will usually give Mail a very noticeable performance boost, and help ensure continued trouble-free operation.

Every now and then (or, ideally, routinely as you use Mail) you should go through all of your mailboxes in Mail and delete all of the messages you no longer wish to keep. Then, in Mail, choose:
Mailbox menu --> Erase Deleted Messages --> In All Accounts to purge all deleted messages.

After doing this, quit Mail.You can then use this free utility to quickly and easily rebuild Mail's database:

8) CLEAR YOUR DESKTOP
Moving things to a location other than on your desktop is an easy and free way to pick up better performance. Users have noticed that reducing the number of items on their Mac’s desktop can noticeably increase the performance of certain activities in OS X. This is easy to do. You can even create one folder on your desktop and put everything on your desktop in it. That will do the trick. Nested items within folders on the Desktop don't count. It is only the total number of items directly on your desktop that matter.

以上要点都摘自下面的链接。
http://www.macattorney.com/ts.html#10

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