Frequently Asked Questions
CPU Software and Activities (Preliminary Version)

Note: You may also find answers to your questions in these documents:

These documents can be found on your CPU Premliminary CD-ROM. Please keep in mind that the Preliminary Version of the CPU Software and Activities is provided "as is." Neither the CPU Project nor the San Diego State University Foundation will provide any additional technical support.



Q:

When I try to open a CPU Editor, the program doesn't start and I get a message telling me I've got a library that I need to place in the Extensions folder. Doing that doesn't help me either. What I am supposed to with the CPU Editors?

A:

Ignore the "Library" message. All CPU Editors should be placed in the Editors folder, which is located inside the System Folder on your hard drive. The Editors folder is created when OpenDoc is installed, so if you can't find the Editors folder, you may not have installed OpenDoc. Please check the document entitled Read Me Before Doing Anything Else! to find out how to install OpenDoc on your system..

To actually run CPU software, you must first create Stationery Pads. All CPU activities and simulators are Stationery Pads. A user can make a new Stationery Pad from an Editor like Dock 'Em or one of the simulator Editors. See the document OpenDoc Readme for instructions on creating Stationery Pads.

Q:

When I try to open a CPU activity or simulation, I get an error message saying "This document is almost out of memory..." I increase the memory, save the document, and it reopens. But I'm getting annoyed at having to do this every time I open a CPU file. Is there an easier way of increasing the memory?

A:

Yes! There is a MUCH easier way! Open the Control Panel labeled "OpenDoc Setup. Usually, you can do this by clicking on the Apple in the upper left corner of your screen. This opens up a menu (the Apple menu), from which you first select "Control Panels." On the Control Panels submenu, select OpenDoc setup. In the OpenDoc Setup control panel, increase memory from 384 K to 2048 K. You will find more complete instructions in the document OpenDoc Readme on your CPU CD.

Q:

If I open a CPU activity and make NO changes to it, when I try to close it I get a message asking me if I want to save changes to "DocumentName 1"? Why does the computer ask me that? What should I do?

A:

If you have made no changes, you probably want to click "Don't Save." The reason you get the save/don't save message is because all CPU Activities and Simulations are Stationery Pads. When you double-click on a Stationery Pad, OpenDoc creates a new document which gets the name of the Stationery Pad plus a numeral (starting with 1). This is the document that you actually open and read. Even if you make no changes, OpenDoc always asks you if you want to save this document the first time you open it, but not subsequently. To find out more about how Stationery Pads work, read the document OpenDoc Readme on your CPU CD.

Q:

When I open a CPU simulator, I only get a blank screen. What do I do next?

A:

Open the menu labeled Simulator, and select the Elements, Control, and Drawing palettes. These palettes will provide you with all the tools and controls you need to run the simulators. In the Force & Motion simulator, you need to open the Control menu and select Show Tools. Also, open the Simulator menu and select Show Clock. For more general information on CPU simulators, read the document named CPU Simulator Instructions on your CPU CD.



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