Mass Storage 198? Hewlett-Packard I/O LPU 198? Hewlett-Packard I/O PPU 198? Hewlett-Packard Graphics 198? Hewlett-Packard PDR-45 198? Infotek Systems Programmer's Toolkit 198? Structured Software Systems HP 9845B Command File/Memory Mass Storage ROM (Rev A) 198? Structured Software Systems HP 9845B Command File/Memory Mass Storage ROM (Rev B) 198? Hewlett-Packard