3-2 Understanding System FeaturesSoftware installed on the hard drive includes: Microsoft® Windows® 95/98 MS Office 97 Small Business Edition/Microsoft HomeEssentials Internet Explorer Appropriate drivers for your hardware McAfee® VirusScan®, McAfee WebScan™ Adobe® Acrobat® reader.SYSTEM CHASSISThe chassis provides an enclosure for the system board,power supply, two PCI expansion slots, one ISA expansionslot, and seven storage device slots (two for hard drives).SYSTEM BOARD COMPONENTSYour computer’s system board has the followingcomponents.ProcessorProcessing for your system is provided by the IntelPentium II microprocessor at speeds of266, 300, or 333 MHz.Drive InterfacesPCI IDE EIDE Ultra ATA (hard drives) ATAPI (CD-ROM drives, DVD drives, tape backupunits, Zip drives)