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- Tips For Using Memory Efficiently
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- If you’re having problems opening application programs or printing, these tips
- will help you avoid problems by using your computer’s memory more efficiently.
- To use System 7, your Macintosh needs at least 2 megabytes of memory. If you
- customarily work with several programs at a time, you may wish to install more
- memory. For more information about managing your computer’s memory, see the
- Macintosh User’s Guide.
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- Use the Available Memory
- Sometimes when you try to open a program, you’ll see a message asking if you’d
- like to open the program using the available memory. Don’t worry. This message
- appears when the available memory is greater than the minimum memory required
- to open the program, but less than the recommended amount of memory. When you
- see this message, click OK, and the program will open. In rare cases, you may
- be unable to use some features of the program, but usually you’ll be able to
- use the program without a problem.
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- Quit Some Open Programs
- When you try to open a program you may see a message that there’s not enough
- memory available to open the program. This message appears when the available
- memory is less than the minimum required to open the program. When you see the
- “not enough memory” message, you should quit one or more open programs. You can
- see which programs are open by pulling down the Application menu.
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- Reduce a Program’s Memory Size
- You can often avoid memory problems by reducing a program’s “appetite” for
- memory. (In rare cases, reducing a program’s memory size causes performance
- problems, but usually you’ll be able to use the program without a problem.)
- To reduce a program’s memory size, first quit the program. Then select the
- program’s icon and choose Get Info from the File menu. The program’s Info
- window appears. After setting the memory size, close the Info window and try
- opening the program again.
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- Quit Some Programs Before Printing
- Sometimes when you try to print, you’ll see the Application menu begin to
- blink. When this happens, you need to quit a program to make more memory
- available for printing. First, choose Finder from the Application menu. You’ll
- see the alert box shown below. Click OK to close the alert box. Next you
- should quit one or more open programs. To quit a program, make it active by
- choosing it from the Application menu, then choose Quit from the File menu.
- After quitting some programs, try printing again.
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- Set the Disk Cache to the Smallest Size
- The disk cache is a portion of the computer’s memory set aside to limit how
- often the computer must read from a disk––thus speeding the computer’s
- performance. By reducing the size of the disk cache, you can make more memory
- available for application programs. To adjust the disk cache, open the Memory
- control panel. (Choose Control Panels from the Apple menu, then double-click
- the Memory icon to open it.) In the Memory control panel, click the down arrow
- repeatedly until the disk cache is the smallest possible size. Finally,
- restart your computer (by choosing Restart from the Special menu.)
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- Drag Optional System Extensions Out of the System Folder
- System extensions (also known as INITs) compete with application programs for
- memory. (System extension icons are often displayed in the bottom-left portion
- of the screen when the computer is starting up.) You’ll find system extensions
- in the Extensions folder, which is in the System Folder. You can conserve
- memory by removing system extensions that you don’t need. For instance, if your
- Macintosh is not connected to a host database, you can remove the DAL (Data
- Access Language) system extension. Likewise, if your Macintosh is not connected
- to a network, you can remove the AppleShare system extension. To remove a
- system extension, drag its icon out of the System Folder to another location on
- your hard disk, then restart the computer.
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- Restart the Computer.
- If you have opened and closed a number of programs, your Macintosh memory can
- become fragmented so that you can’t open a large program. You can alleviate
- this problem by quitting all the programs you have open, and restarting the
- computer.
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- Turn Off Background Printing
- When background printing is turned on, you can print while using the computer
- for other work. If you don’t need background printing, you can reduce the
- amount of memory required to print by turning background printing off. To turn
- off background printing, choose the Chooser from the Apple menu. In the Chooser
- window, select a LaserWriter icon and click the button labeled “Background
- Printing: Off.”
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- Turn Off File Sharing
- When file sharing is turned on, you can share information on your computer’s
- hard disk with other users on a network. If you are not currently using file
- sharing, you can conserve memory by turning file sharing off. To turn off file
- sharing, open the Sharing Setup control panel. (Choose Control Panels from the
- Apple menu, then double-click the Sharing Setup icon to open it.) In the File
- Sharing section of the Sharing Setup control panel, click Stop. A message
- appears asking how many minutes the computer should wait until file
- sharing is turned off. Type a number, then click OK.
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