[Coco] Heathkit H89

[Rob Rosenbrock]

>
> ________________________________________
> From: Coco [coco-bounces at maltedmedia.com] on behalf of Rob Rosenbrock
> [bester at adamswells.com]
> Sent: Saturday, April 22, 2017 1:24 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Heathkit H89
>
>>
>> Since someone mentioned the H89 I was wondering if there is any
>> compatibility between mod 1/3 software and the Heath.  The only reason I
>> ever picked one up is because it also uses the Zilog Z80. (actually a
>> pair
>> of them clocked higher than the trs80s)
>>
>> ,
>>
>> --
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>> Coco at maltedmedia.com
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>>
> I built an H88/H89 many years ago and succeeded in getting a few programs
> converted over, but it took a lot of re-writing.
>
> The biggest difference is that the H88/H89 is essentially a terminal with
> a built-in host computer. While the display is part of memory on the
> TRS-80, video on the H88/H89 is handled by sending characters to the
> display. Instead of using PRINT@, you use an ESC sequence. Also, the crude
> graphics on the TRS-80 are non-existent on the H88/H89.
>
> ____________________________________
>
> Am I the only one here who found it funny to call the TRS-80's graphics
> "crude"
> while comparing it to a system where the alternative is nothing?  :-)
>
> bill

LOL

I didn't intend that, but meant that in relation to the Coco the (stock)
Mod I/III graphics are crude/rudimentary - just SET & RESET, and rather
lo-res at that. In fact, that was one of the reasons I bought my first
Coco.

What I found funny was discussing a H89 as if moving to it from the Mod
III when I did just the opposite.