ocr: Tou use Microsoft Musical Instruments for Windows - you need: A. Multimedia PC or compatible with: 386SX or higher processor 2MB of RAM 30MB hard disk (550K on local hard drive) CD-ROM drive VGA display (display capable of 256 colors highly recommended) Audio board Microsoft Windows operating system 3.1 or later MS-DOSE operating system 3.1 or later MS-DOS CD-ROM Extensions (MSCDEX)v2.2 or later Microsoft Mouse or compatible pointing device Headphones or. speakers A version of this product is also available for the Macintoshe. MACINTOSH SERES