RioRico 1's Comments
I think I started with a cheap EduComp(?) plastic-cam non-electric 'computer' around 1977. Then in 1980-81 I built a Heathkit H8-H19 system - 1 MHz 8080 processor, 16Kb RAM (quickly upped to 80Kb), an octal (base-8) keypad, a 300 baud modem. And three 91k 5.25" floppy drives for US$1200, for total storage of 273k, just enough for WordMaster and the MS Cobol-80 compiler with CP/M 1.4.
(My wife, with no previous soldering-circuitboarding experience, successfully built the HeathKit H14 printer. But she was already a professional programmer, proficient with wire-programmed circuit cards and punchcard coding, on mainframes where data-drum rotational latency needed to be considered in I/O timings.)
I quickly moved up to a Heath-Zenith HZ90 system (twin 4 MHz Z80 processors, MP/M multitasking, twin 360k floppy drives) and a 1200-baud! modem, blazing fast! Then I went hogwild and got a Godbout-Compupro S100 box with an 8 Mhz Z80, 258kb RAM, twin 1200kb 8" super-floppy drives, and even a 5Mb hard disk. Ooh, expensive...
Then some other CPM/MPM systems, including the nifty little PMC MicroMate, and a couple workhorse Televideo semi-portables. And Sinclair ZX80s and ZX81s, for which I commercially wrote financial software. And an Atari 800, a TI99a, a PET-20(?), And various other boxes and terminals, details of which I've forgotten. Networking and interoperability? Rudimentary at best.
And then I started on PC clones and had to leave all that old stuff behind, except some ANSI terminals as remotes. I tried an original Mac and was completely unimpressed. It's been downhill ever since. Now I stick to WinTel laptops, so I'm not tempted to constantly upgrade minor hardware and rewrite BIOS's and tweak interfaces. Actually accomplishing stuff - imagine that!
(My wife, with no previous soldering-circuitboarding experience, successfully built the HeathKit H14 printer. But she was already a professional programmer, proficient with wire-programmed circuit cards and punchcard coding, on mainframes where data-drum rotational latency needed to be considered in I/O timings.)
I quickly moved up to a Heath-Zenith HZ90 system (twin 4 MHz Z80 processors, MP/M multitasking, twin 360k floppy drives) and a 1200-baud! modem, blazing fast! Then I went hogwild and got a Godbout-Compupro S100 box with an 8 Mhz Z80, 258kb RAM, twin 1200kb 8" super-floppy drives, and even a 5Mb hard disk. Ooh, expensive...
Then some other CPM/MPM systems, including the nifty little PMC MicroMate, and a couple workhorse Televideo semi-portables. And Sinclair ZX80s and ZX81s, for which I commercially wrote financial software. And an Atari 800, a TI99a, a PET-20(?), And various other boxes and terminals, details of which I've forgotten. Networking and interoperability? Rudimentary at best.
And then I started on PC clones and had to leave all that old stuff behind, except some ANSI terminals as remotes. I tried an original Mac and was completely unimpressed. It's been downhill ever since. Now I stick to WinTel laptops, so I'm not tempted to constantly upgrade minor hardware and rewrite BIOS's and tweak interfaces. Actually accomplishing stuff - imagine that!
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http://www.bisbee1000.org/
Bisbee Arizona is a mile-high mining town on the Mexican border, barely attached to various deep canyons. About 1/3 of Old Bisbee houses are accessible only by steep stairways. The annual race up-and-down those stairs is always a blast.
Scores of other stairclimb races are also held.
http://www.towerrunning.com/english/races.htm
Those of us with bad knees had best just watch such events.