[TUHS] Algol68 vs. C at Bell Labs
Marc Rochkind
rochkind at basepath.com
Fri Jul 1 11:21:52 AEST 2016
thanks for these comments... lots of interesting stuff
On Thursday, June 30, 2016, Clem Cole <clemc at ccc.com> wrote:
> Marc,
>
> I mostly agree but you have a little history out of order. Apple and
> Franklin really are important here. More inline...
>
> On Thu, Jun 30, 2016 at 7:16 PM, Marc Rochkind <rochkind at basepath.com
> <javascript:_e(%7B%7D,'cvml','rochkind at basepath.com');>> wrote:
>
>> Clem Cole: "IBM allowed the system to be cloned"
>>
>> I never looked at it that way. To discourage cloning, IBM published and
>> copyrighted the BIOS source code.
>>
> Hang on that it was not quite that simple. In fact IBM did publish
> everything because that was what all the PC folks did at the time. As did
> IBM themselves in their mainframes. Remember when the PC was originally
> developed, Judge Green has not yet left IBM from its bondage. So IBM was
> very careful in those days to follow industry norms. The PC folks (like
> Apple, Altair, Cromemco et al) published the schematics and the ROM
> listings. The OS's and higher level tools were closed but the rest tended
> to be generally available so IBM followed suit.
>
>
>
>
>
>> ....
>> A few outfits sprang up to do clean-room BIOS clones, including an
>> outfit called Phoenix, which had the best. Compaq's internal BIOS was also
>> excellent.
>>
> This post the Franklin Computer case. Clones of Apple II sprung up,
> with CPU motherboards coming from Taiwan. Hey I made an Apple II clone,
> as well as an Xerox 820 clone in those days myself (I may still have the
> later).
>
> Franklin Computer of Philadelphia started to sell their Apple II to run
> Visacalc - which was the "killer app" of the day (note a theme here). Jobs
> did not like it and took them to court. I actually knew the main attorney
> for Franklin at the time (one of the few big cases he even lost). Apple
> won because it was the contents of the ROM (bit for bit) that was found to
> be identical. The question became could you "copyright" the bits. [There
> is a whole side discussion about what the memory chip guys of that day did
> to try to keep people from copying them BTW].
>
> Anyway, once that became case law, the concept of a "clean room" was
> created. As you say, Phoenix did a remarkable job. BTW: in an
> interested side note, years later, IBM sold Phoenix its BIOS and started to
> use theirs when the Phoenix BIOS became the gold standard.
>
>
>
>>
>> As for the computer hardware, it was just Intel parts
>>
> Motorola, WD, and TI parts originally.
>
>
>
>
>> For the clones, no copyrighted code was used, the programmers had never
>> seen the code, and the function of the BIOS wasn't copyrightable. So, IBM
>> really had no way to prevent the clones.
>>
> If they had not published the original material, I suspect it would have
> been far, far harder and less attractive. But also remember, clone in the
> IBM land was already around. Amdahl was selling like hot cakes. IBM had
> learned that with the clone market, they sold more of their own product.
> It was an interesting business view. The pie was getting bigger faster,
> so they got a larger amount of pie, even though the percentage of the pie
> got smaller. So IBM made more money.
>
> This was a lesson a lot of companies, particularly computer firms, never
> quite understood. Having a weak, buy alive competitor is better than no
> competition.
>
>
>
>
>>
>>
>> There were a lot of PCs in the early 1980s that weren't clones.
>>
> Absolutely. But if the OS has been reasonable and had be able to hide
> the differences (and you not be able to go directly to HW addresses etc..)
> this would have been less of an issue.
>
>
>
>
>> ...
>> DEC, which had their own weird version of a PC, was the worst.
>>
> No doubt.
>
>
>
>> One might ask why we had such a primitive system with 384K, when UNIX had
>> been developed over 10 years before on a smaller system. Simple: UNIX had
>> swapping.
>>
> Truth is folks built systems that swapped to floppies (and cassette tape
> et al) in those days. Originally Magix was going to be in that same camp
> when it was a "G-job" by Roger and myself. When our boss funded its the
> first thing we did was add a 10M disk.
>
>
>
>
>> ...
>> To get the screen speed on a PC, the application had to own the hardware.
>>
> That was a deficiency of the PC HW design. Other systems, such as the
> Magnolia and later Apollo/Masscomp/Sun, showed you could have fine speed
> with out having to do that. Also in "PC land" consider when the '20 Mac
> came out and Apple started to get religion (as did NeXT shortly there
> after).
>
> You could do it, but the original PC designs were sloppy and did not care
> -- the feeling was that extra HW (and SW to support) was unnecessary.
> In many ways, the original PC guys were right given how far and how long
> those systems lived. But it was painful for the SW building as you
> pointed out. You should not have had to do such "unnatural" or "unsafe"
> acts.
>
>
>
>
>> UNIX insists on standing between the application and the hardware.
>>
> As it should ;-) It required good HW under the covers and then UNIX
> drivers that did the the right things. In the same time frame as the PC
> was developed it was definitely possible and would not have cost more.
>
>
>
>
>> In PC land that would be unacceptable.
>>
> Only because the HW sucked and the OS did not have the right types of
> structures to make it work.
>
> Seriously, Marc I get it and you are better man for dealing with the craziness
> of the day. Many of the rest of us would not at the time, and until we got
> "real HW" did not mess that much with it. Then again, I did not care to
> run a VisaCalc or a Word Perfect :-)
>
> Clem
>
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