| From: | Don Cox |
| Date: | 25 Jul 2001 at 10:57:10 |
| Subject: | Re: Codecs, et. al. (Was: RealAudio) |
On 24-Jul-01, Stephen Webber wrote:
> I don't think IBM so much as opened up their systems as built them
> from standard off the shelf parts. The BIOS was cloned by the simple
> method of getting somebody to disassemble the code, figure out exactly
> what it did and then write an exact specification of how it worked.
> The spec was then given to another coder who would write a new bios to
> the same spec as the original, thereby making sure that by not
> exposing the second programmer to the code in the original bios, he
> would not be tempted to reuse any of it and breach copyright laws.
The BIOS in early PCs was almost identical to the cp/m BIOS, which was
well known and published. As time went on, more functions were added.
Regards
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