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Chapter 7. Do-It-Yourself Program Instal... > Does Your Computer Have What It Take... - Pg. 71

Do-It-Yourself Program Installation Guide 6. 71 Click Cancel to close the Virtual Memory dialog box, and click Close to close the System Prop- erties dialog box. Techno Talk Most computers use three types of memory : conventional , extended , and virtual . Conven-tional and extended memory are types of physical memory, in the form of memory chips; that is, they store data electronically. Conventional memory is what most programs use; it is the first 640 kilobytes of memory. Extended memory consists of additional RAM beyond the first 640 kilobytes. (Windows NT, Windows 2000, and Windows XP treat conventional and extended memory the same.) Virtual memory is disk space that Windows can use as memory. However, because a disk drive transfers information more slowly than RAM transfers information, virtual memory is relatively slow. What Kind of Monitor Do You Have? If your monitor was manufactured in 1995 or later, you can be pretty sure it's an SVGA monitor that supports at least 256 colors and a resolution of 800×600 dpi ( dots per inch ). To make sure, right- click a blank area of the Windows desktop and click Properties. Click the Settings tab, as shown in the Figure 7.3. Open the Colors drop-down list and choose 256 Colors or a higher color setting. If the available color settings go up to only 16 you have VGA; not SVGA. Figure 7.3. Check your display settings. Drag the slider under Screen Area to a 640×480 or 800×600 setting or higher. (Higher settings display smaller objects, fitting more of them on the screen.) If you can't change the setting to 640×480 or higher, you don't have SVGA. Click OK and restart your computer when prompted.