• 486 DX/33 MHz multimedia PC or compatible for Windows 3.x; 486 DX/100 MHz or higher processor for Windows 98, 95 or NT Workstation 4.0.
• 8 MB of memory for Windows 3.x; 16 MB of memory for Windows 98, 95 or NT Workstation 4.0
• "Double-speed" CD-ROM drive (300 KB/sec or higher transfer rate)
• Windows-compatible sound card and supporting software; wave-table sound card recommended for MIDI sound playback
• SVGA 256-color monitor
• 10 MB Hard-disk space
• For Windows 3.x only, Microsoft CD Extensions version 2.2 or later
• Apple QuickTime® for Windows version 2.1.2 for Windows 3.1; version 3.0 required for Windows 98, 95 or NT (both supplied with product)
• Microsoft mouse or compatible pointing device
• Speakers or Headphones
• Printer (optional)

Macintosh® System Requirements:

• Computer: Macintosh® LC III or higher, 68030 CPU, 25 MHz or faster
• Operating System: MacOS system software version 7.1 or later
• Memory: 8 MB of available RAM (in addition to RAM used by system)
• Hard Disk: 10 MB of free hard-disk space
• Video: 13 in. or larger color monitor & computer capable of displaying at least 256 colors
• CD-ROM Drive: 300 KB/sec or higher transfer rate (double-speed or higher)
• Supporting Software: QuickTime® 3.0 (supplied with product)
• Printer: Macintosh-compatible printer

Optional Online Requirements Both Platforms:

• Modem (required for online features only)
• Access to the World Wide Web using an Internet Service Provider (required for Grolier Internet Index and access to other Grolier databases)
• To use the 1999 Grolier Multimedia Encyclopedia® with the Internet you also need additional memory and hard-disk space. Please refer to individual products for specific additional requirements.