oldhighgerman wrote on 2024-08-11, 02:10:Hi Dave. Yes the 100 was a novel little.unit in it's time. 8085 based iirc. […]
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Hi Dave. Yes the 100 was a novel little.unit in it's time. 8085 based iirc.
No boot?? Come on Dave, you know better. 😀
Now was the 200 an upgrade or a whole new thing?
Until some of us got cars, or begged our p's to take us to puter shops, Radio Shack was the only means to learn about this stuff. They were everywhere. If you were lucky enough you could walk to one.
Really no boot - the Model100 ran from ROM and it's storage was battery backed up CMOS ram.
Yes, on RESET the ROM restarts - so you do end up at the main menu, but there is no "pulling yourself up by your bootstraps"
as everything is still sitting in memory, all it has to do is JMP to it.
Even things like BASIC keeps track of if a program has been entered and where you are - so if you partially
type in a BASIC program, then accidentally power-off - powere-on you will be at the main menu,
but if you choose "BASIC" - your partially entered program will still be there! even though you
never "saved" it to a file!
The 200 was basically an enhanced 100 with bigger screen and a bit nicer keyboard... but I found it to
be less useful as the 100 you could litteraly move around like a box - no need to open it etc.
I let my 200 go, but I kept the 100 (and now I have a couple more)
I also had a 102 - basically almost the same as a 100, slight ROM change (I think some sort of minor bug fix that I
never noticed) and slightly thinner - I let the 102 go as well.
And I do still use the 100s from time to time - nice to be able to enter information anywhere in
my location without having to arrange power / wait for a system to boot up.
Unlike many people today, I don't tend to save information in some proprietary softwares own unique file format...
I tend to use text - therefore I can easily use my own tools to manipulate it, and it's next to impossible for some
"software error" to lose data on me - I can always read and interpret text! (even if I have to dig it out of a deleted
file - and it's dead easy to move files to/from a PC -
Yes, it's an 8085 - in the day that was kinda important to me as due to my main system having been an 8080 based
Altair - I knew the 8085 instruction set very well and had LOTS of machine code written for it, some of which I ported
over to the model-100.
Dave ::: https://dunfield.themindfactory.com ::: "Daves Old Computers"->Personal
Dave ::: https://dunfield.themindfactory.com ::: "Daves Old Computers"->Personal