Apple Ibook

Apple Ibook

Apple iBook personal settings disappear when the computer is switched on again?

I recently purchased an apple ibook. im slowly learning to use mac but have a problem. i personalise my laptop like the desktop, screensaver, finder display ect but then when it is switched off and switched on again in the morning the settings are back to the standard ones! Any clue why this is? thanks =)

I'm guessing the permissions settings on your system are probably a little screwy. It's not too hard to diagnose and fix.

- Go to Applications/Utilities/Disk Utility.
- On the left, click your hard drive
- If the right (main) area isn't in First Aid, click that button near the top.
- At the bottom near the left, click the button 'Repair Permissions'

I usually run the repair twice, just in case.

When it's done, restart and try setting your preferences again. If this still is a problem try making a new account.

- Under the Apple menu, select System Preferences.
- Click on the Accounts Icon
- If the lock symbol in the bottom left appears locked, click it and put in your password
- Click the '+' button and create a new account. I recommend giving it Administrator privledges.

Now log out and log back in as the new account. If you can change the preferences in the new account and they stick. Log back into your old account and delete the following file:

~/Library/Preferences/com.apple.systempreferences.plist

Where '~' is your home folder. This preference file stores the settings you're describing. When you set new preferences, it will create a new file.

Good luck.

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IPhone application development has minimum hardware requirements without which iPhone programming cannot begin. This small guide lists the essential hardware needed for iPhone development and also mentions the alternatives wherever possible.

Mac Machine

One of the first hardware any budding iPhone developer should procure is an Intel-based Mac machine or Mac Book because iPhone applications can only be developed using Apple X OS. Does this mean non-Intel based Mac machines cannot be used for iPhone application development? Yes, spot on.

Will a Power PC Mac work for iPhone development?

A Power PC Mac will work but the output will be sluggish, to say the least and result in extremely low productivity. An iBook will be worse, so better stick to a powerful Intel-based Mac PC for your iPhone application development. In spite of this, if you still want to use PowerPC make sure it is running Leopard 10.5.4 or higher.

Old or new Mac?

While both will work, a new dual-core Mac machine should gallop and when the race for iPhone development is tight you want to sprint and not trot, right? However, you can take your pick between a Mac Book (or Mac Mini) and a Mac PC as XCode and Interface Builder run smoothly on both machines. Whichever Mac you choose, ensure it has at least 2GB RAM for smooth performance.

iPhone

iPhone applications can also be developed using the iPhone Simulator that comes bundled with the iPhone SDK (Software Development Kit) but the problem arises when you want to test the application's GPS functionality or access the internet from within the application. In such cases the iPhone simulator is not enough and you have no option left but to purchase an iPhone. But if you can somehow make do without GPS and internet, the iPhone Simulator for iPhone application development will do just fine.

Once you have this minimum hardware ready you are all set to create great iPhone applications and games.

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