Lab Report 2.3
Lab Report 2.3
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1. |
What indicates that you need to optimize DOS memory? |
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2. |
What is the function of the MEMMAKER utility? |
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3. |
What types of memory are nonvolatile? |
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4. |
What is the function of the MEM utility? |
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Answers
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1. |
A DOS program refuses to run and
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2. |
MEMMAKER is used to optimize DOS memory in a DOS system. |
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3. |
ROM, PROM, and Flash RAM are nonvolatile. |
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4. |
The MEM utility displays memory information. |
Lab 2.4: Examining
Windows
98 Memory Areas
Before you begin this lab, you should understand the concepts of
logical memory
and
reserved memory
. Logical memory is the way physical memory is seen by the operating system. Windows does a good job of managing system memory. The MS-DOS memory map shows the first 640KB of RAM as the
The memory area between conventional (640KB) and expanded (1024KB) is reserved for system
Upon completion of this lab, you will be able to:
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Use Device Manager to examine memory
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Use the System Information folder to examine memory
Set Up
For this lab, you will need a working computer with Windows 98 installed.
Exercises
In this lab, you will examine memory areas in a Windows 98 system. Windows 98 does a good job of managing system memory; however, you will have problems if the system has insufficient memory.
Using Device Manager to Examine Memory Resources
To use Device Manager to examine memory resources,
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Use the following sequence to
open the System Properties dialog box:Start Ø Settings Ø Control Panel Ø System
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Select the General tab in the System Properties dialog box and record the RAM:
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Select the Device Manager tab in the System Properties dialog box and then select Computer. Click Properties and then click the Input/Output radio button. Record the communications port (COM 1) I/O address:
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Click the Memory radio button and record the system board BIOS address (Settings):
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Close all windows.
Using the System Information Dialog Box to Examine Memory Resources
To use the System Information dialog box to examine memory resources,
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Use the following to open the system information dialog box:
Start Ø Programs Ø Accessories Ø System Tools Ø System Information
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In the System Information dialog box, click the plus sign by Hardware Resources to open the hardware tree. In the hardware tree, click I/O and record the I/O address (I/O Range) used by COM 1:
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In the hardware tree, click Memory and record the memory addresses used by the system board BIOS:
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In the System Information dialog box, click System Information and record the percentage of system resources that are free:
If less than 30 percent of system resources are free, the computer may not function properly if you open an additional program.
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Without closing the System Information dialog box, open a program such as Paint and then minimize the program:
Start Ø Programs Ø Accessories Ø Paint
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Select System Information in the System Information dialog box, click View, and then click Refresh. Record the percentage of system resources that are free. The difference in the amount of resources listed in step 4 and step 6 are the resources used by the program you just opened.