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Topic: Where did you start with Micro controllers? (Read 7 times) previous topic - next topic


A 4040 processor, with a whopping 1024 'bits' of static RAM. Machine language of course. Ended up building the interface to print to a KSR-15 TTY printer, mmmm.
Sad part, I still have some of that crap out in the barn.


In 1966 the company I worked( aerospace ) designed a package with a Rolm computer.The Rolm was a militarized Data General. I worked in the Calibration Lab and was sent to a school to learn to maintain the beasts. They had 4K of core memory and you load a bootstrap loader by hand and then loaded a tape with the system from the tape reader on a teletype. In class they would start the load and give a lecture while the teletype clunked on and on.

8000ft above the average


Thread revival!  I guess I never answered the original question...
I started out on Mainframes, DEC-10s, DEC-20s, and big iron IBM (summer job during college.)  I lusted after various microcomputers, starting with the Altair 8080 and SWTP 6800, with more significant interest in Cosmic Elf 1802 and 8085.  Later the PIC came out and was even more interesting, plus AVRs and etc.  But it was really difficult to get very motivated to actually do much with them when I had entire ARPANet-connected mainframes to play with...

Eventually the DEC mainframes were dying and I moved (professionally) to high-end microcontrollers like 68000, x86, MIPS, and PPC, where the hardware/micro background was useful for low level infrastructure and driver work.  I still seem to enjoy infrastructure development more than actual projects...


n 1966 the company I worked( aerospace ) designed a package with a Rolm computer.The Rolm was a militarized Data General
Rolm was founded after DG, and DG only started up in about 1968. Or so I thought.
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.


I started out with the Z80 and in 1978. First machine was a TRS-80 Mod 1 Level 2 BASIC with 4K RAM. Did an upgrade to 16K for $40. Played around with a number of CPM machines and more recently with a couple of microcontrollers. Arduino is by far, the easiest to get started with and has a good IDE that works better than many you have to pay for.

Printers - Seems like DEC had a highspeed Dot Matrix that had like 4 print heads. All tied together on the same carriage so they moved together. That would be like 33 collumns for each printhead.

Tore apart one of those old drum printers. That bronze print drum weighed like 5 pounds. Had small driver boards, 1 for each printhead. Paper would FLY through those machines.

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