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To: Alomex who wrote (33574)6/3/2002 2:36:00 AM
From: Jeff Hayden  Read Replies (1) | Respond to of 213177
 
You forget the drivers. Those are architecture specific and had to be written from scratch. Support for a new color display in particular proved to be difficult.

What color? Green, amber, or white on black? I don't remember the first IBM PCs having color. I thought many machine specific drivers were in the BIOS ROM along with a loader? But since I'm not a PC expert, that could be wrong.



To: Alomex who wrote (33574)6/4/2002 2:02:33 PM
From: nommedeguerre  Respond to of 213177
 
Alomex,

"You forget the drivers. Those are architecture specific and had to be written from scratch...."

Architecture-specific drivers? Do you mean the BIOS equivalents? Have you ever seen the source code for DOS 1.0? There is NOTHING there, it is a wafer-thin OS layer on top of the original IBM ROM BIOS. It was a quick port of QDOS, that's all.

Cheers,
Norm


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