Showing posts with label OS X. Show all posts
Showing posts with label OS X. Show all posts

Thursday, July 23, 2009

Make Your Macintosh Read Aloud to You

Your Macintosh can read aloud to you. Mac OSX Leopard has a text-to-speech function that will, with a keystroke combination you set, read any text you’ve highlighted in a text-based file. It can read e-mail messages, webpage text, PDFs, calendar entries, spreadsheets, word processor documents, and more.

To set your Macintosh so that it reads text, go to your System Preferences and choose Speech. In the Speech dialog, you can try various reading voices - Alex, Bruce, Victoria, and about 18 others. You can select the speed they read to you. Most importantly, you can choose a key combination to initiate speech. Click the Set Key... button. Then choose the key combination you wish. I would personally avoid common ones like Command-S - which is the save command in most programs. Here I’ve chosen Control-S as my key combination.

Now, whenever I want to have the computer read to me, I first select (highlight) the text I want, press the key combination, and the Macintosh begins to read the text to me. Be sure your volume is turned up so you can hear it. If I want the speech to stop, I just press the same key combination again. It acts as an on-off switch.

Tired of reading the student’s homework? You can have it read to you instead.

Sunday, June 21, 2009

Macintosh - Really Empty the Trash


You all know how to empty the Macintosh trash of the files you’ve dragged there. (Or used Command-Delete to trash) The Mac’s hard drive churns for just a second and the trash bin turns from a full icon to an empty trash icon. What really happens though? All computer operating systems that I’m aware of delete the files by removing the reference to them from the file directory, and marks that space on your hard drive as free space to write to again. It doesn’t really go out and erase every bit of the files. They are actually still sitting there on your hard drive. That is, until some other file writes over the top of them.

According to Apple’s web site, “That’s why Mac OS X Leopard provides another option for deleting data: the Secure Empty Trash command. Meant for those occasions when you want to permanently and immediately delete files, Secure Empty Trash overwrites your data with
digital gibberish, ensuring that your deleted data is gone for good. It may take a few moments longer, but it’s a good choice for deleting data you’re sure you don’t need — and don’t want anyone else to see.

To delete your Trash securely, go to the Finder menu and select Secure Empty Trash. A pop-up will ask you to confirm that you want to permanently erase the items in the Trash. Click OK, and these files will be gone forever.”