|Macintosh Basics Chapter Three|
by Jim Breen
from the May 2003 Newsletter
Actrix has many customers who are using Macintosh systems and some information and
tips on how these customers can get the most out of their internet experience and be able
identify and rectify common problems should be useful.
Last month Jim Breen dealt with some basic sites and downloads for Macintosh systems as well as using Mac Help. This month he continues with Part 1 of two sections on Practical and System Tips - Ed.
Unlike OS X, older Mac systems do not automatically manage memory requirements of a program and sometimes it is necessary to increase this especially if strange thing are happening or you are getting frequent Type 2 or 3 errors. To adjust the memory available to a program, first make sure the program is closed (see item on closing programs).
Click on the end of the control strip to retract it again.
If a program stops responding or freezes up, it is sometimes possible to close this program and to avoid having to do a complete restart on your computer to get things working normally again. To do this hold down the Command (Apple key) and Option keys together and press Esc. Restart the program, but if you are still having trouble shut down the computer and restart.
To place items in the Trash you can either drag and drop them onto the hilighted trash icon or highlight the item and go to File/Move to trash. If you want to retrieve something from the Trash double click the Trash and drag the item out again. Remember to empty the trash from time to time as these items are using up disk space. Go to Special menu at the top and select Empty Trash.
If you want to take a snapshot of what is on your screen there are several ways to this. Press down Command, Shift, 3, then release the keys. You will immediately hear a camera shutter type noise. The computer has taken a screen shot, or picture, of your entire screen. To find the file containing the image, open your HD folder and look for the Picture 1 icon. Double click on the icon to open the file and then you can print it.
To take a picture of just a section of the screen, hold down Command, Shift, 4, then release the keys. This will change your arrow cursor to a crosshair. Now, press-and-drag the crosshair cursor to make a frame around the image you want to capture, then release the mouse button. You will hear the shutter sound. This produces a file on your HD and you open it the same way as described above.
Modern Mac systems are designed to operate with Virtual Memory turned on as this way programs use less memory for operation. To check or adjust Virtual Memory go to Apple menu/Control panels/memory.
It is normal on Power Macs to have Virtual Memory on and the amount selected in the box
to be 1MB more then the built-in memory. If you need extra memory to run a particular
program or run several programs at once it is quite acceptable to increase the number in
the box to to make this Virtual Memory available for use. There may be a decrease in speed
for some things but generally it works very well.