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I own one of these. My first computer was a TRS-80 Color Computer (which I still have in my garage), and then later I went to college for journalism and worked
by russellbeattie 4y ago
I own one of these. My first computer was a TRS-80 Color Computer (which I still have in my garage), and then later I went to college for journalism and worked at a newspaper for a while, and the Model 100 was a must have for any professional reporter. These things were used regularly well into the 90s. We got to check out one of the shared M100s if we were covering an event which needed quick turnaround. I remember sitting in the bleachers of a college basketball game typing up a story feeling very cool.
I absolutely lusted after one to have for my own, but couldn't afford it when they were new. Then they became underpowered anachronisms and I just made do with fond memories.
About a decade after I became a developer/techie (my true calling), the Model 100 was one of those things that I decided I just had to own, so in the 2000s sometime, I found one one eBay and bought it. I've pulled it out a few times to play and it just gives me joy to own one. One of those life goals I got to check off.
I can't believe how little memory it has though! I wanted to use it to type up a blog post about it, and I ran out of space almost immediately! I think mine has 24k, and not all of it is available. It's insanely tiny. (See how long this comment is? I always write like this... A result of my original career.)
The article is pretty short, but actually has some cool info! So much stuff I never knew about the M100. The display system is crazy. The link to the manual is awesome - it never dawned on me to look. I may have to pull it out of it's box I'm the garage and mess with it.
- IrishJourno 4y agoThe low memory was another impetus for upgrading it. I use a REX chip upgrade, which gives me a lot more storage, but the RAM can only hold an article's worth of words at a time, anything longer and you're having to save and load segments. (I'm the author of the original article, glad you liked the dive into the guts. There's so much incredible documentation and books about the Tandy available for free now!)
- IrishJourno 4y agoOne other crazy detail I didn't have space to put in the article is that half of the driver chips are mounted upside down in cutouts in the circuit board! It's so the data bus and some other control signals can be daisy chained between them without needing another layer in the PCB.