Apple LaserWriter - was Re: Accelerator boards - no future? Bad business?
toby at telegraphics.com.au
Fri Apr 22 15:47:21 CDT 2016
On 2016-04-22 4:28 PM, Fred Cisin wrote:
> On Fri, 22 Apr 2016, Eric Christopherson wrote:
>> I like the new types of peripherals but it makes me a little
>> knowing that e.g. in the case of the uIEC-SD for Commodores, the clock
>> speed of the peripheral is 16 to 20 times that of the original host
>> CPU. I
>> keep hatching little schemes of perhaps putting a tiny OS kernel in the
>> thing, but at that point *it* would become the computer and the 128 would
>> be just sort of sitting there. The same is true of the CosmosEx device
>> been thinking of getting for my Atari STs; it has a Raspberry Pi inside.
> I heard at the time, that the Apple Laserwriter was the "most powerful"
> machine that they made, and that certain people were connecting
> terminals to it and programming in Postscript. I did some trivial
> programming in Postscript, but didn't have a Laserwriter. It was a
> stack based language, with similarities to Forth. I suspect that the
> "terminals" were actually terminal emulation in whichever machines were
> currently connected anyway.
Yes, it had RS232 serial (and AppleTalk), like all the early PostScript
It wasn't _that_ fast, though: 12 MHz 68K running an interpreted
language (with no doubt native code for the graphics implementation;
perhaps that's where its reputation for speed came from, but only useful
for its actual purpose, printing :).
I suppose one could say that it was a little faster hardware-wise than
the Macs of 1985, but they were usually running native code, so the
comparison isn't very useful imho.
> I made a company logo that was outline letters with a fill of lines
> radiating from a point (think about Moire pattern artifacts when pushing
> the resolution limits). Then I found that the "Freedom Of Press"
> Postscript emulation of the commercial large format printer was too
> slow, and did not have a large enough stack space. (whilst other
> deadlines were looming).
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