PC ROM BIOS

Posted Aug 11, 2011 14:31 UTC (Thu) by dd9jn (✭ supporter ✭, #4459)
Parent article: The Extensible Firmware Interface - an introduction

The PC worked similar to IBM's "professional" /23. Thus the reason for having the BIOS in the ROM was that the PC booted into a BASIC interpreter stored on ROM if no boot floppy was present. IIRC, there was even no automatically boot from the optional tape drive you could use on a floppyless box.