![bullet](../_themes/copy-of-tilt/atlbull1.gif) | PC with a Pentium 75 Megahertz (MHz) or higher processor
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![bullet](../_themes/copy-of-tilt/atlbull1.gif) | Microsoft Windows® 95 or later operating system, or Microsoft Windows NT® Workstation operating system version 4.0 Service Pack 3 or later
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![bullet](../_themes/copy-of-tilt/atlbull1.gif) | For Windows 95 or Windows 98:
16 MB of RAM for the operating system, plus an additional 4 megabytes (MB) of RAM for Excel
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![bullet](../_themes/copy-of-tilt/atlbull1.gif) | For Windows NT Workstation:
32 MB of RAM for the operating system, plus an additional 4 MB of RAM for Excel
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![bullet](../_themes/copy-of-tilt/atlbull1.gif) | 146 MB of available hard-disk space (Number indicates typical installation; your hard-disk usage will vary depending on configuration. Choices made during custom installation may require more or less hard-disk space.)
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![bullet](../_themes/copy-of-tilt/atlbull1.gif) | CD-ROM drive
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![bullet](../_themes/copy-of-tilt/atlbull1.gif) | VGA or higher-resolution monitor; Super VGA recommended
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![bullet](../_themes/copy-of-tilt/atlbull1.gif) | Microsoft Mouse, Microsoft IntelliMouse®, or compatible pointing device
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