The Shop > Software Tools
How's your DOS ?
John Stevenson:
Still got a CNC milling machine on DOS 6.2
Works great and if I upgraded to say Mach 3 i would loose a few things like a one line G Code for thread milling.
awemawson:
--- Quote from: Lew_Merrick_PE on October 08, 2015, 05:38:20 PM ---
My first computer had a discrete component RTL processor running at a (then) screaming 16 kHz! It was "programmed" through bat switches that lit up grain o' wheat bulbs -- until I finally got a Flexowriter hooked up to it...
I suspect that your floppies were 720 kB rather than 720 mB. [My first floppies were 8 inch 32 kB beasties.]
--- End quote ---
... oh no...not Friden Flexowriters .... they were a nightmare to work on. My first printer was a Creed 54N 'hunt and peck' - just post war, driven at telegraph signal voltages (80-0-80) which I interfaced using a home made opto-coupler - an OC71 germanium transistor with the paint scraped off the glass case pushed into a bit of Hellerman rubber sleeving with an led pushed into the other end :bugeye:
Eventually I got my hands on a Shuggart 801 8" floppy drive with all of 128k kbytes but that wasn't until the mid 70's when I built my S100 / CPM system.
awemawson:
--- Quote from: John Stevenson on October 08, 2015, 06:07:52 PM ---Still got a CNC milling machine on DOS 6.2
Works great and if I upgraded to say Mach 3 i would loose a few things like a one line G Code for thread milling.
--- End quote ---
Is that running Ah-Ha John?
jcs0001:
Lew - I think you are right about the 720 kb. floppies. As I recall they were huge and would allow me to do any number of things.
I also worked with a sliderule but haven't yet used an abacus - I have used my fingers and toes on occassion - does that count as old :D
John
lordedmond:
Ok I will get modern 20mb HDD
My first foray was a home brew zilog z80 beast with CPM I then home brewed a cuts interface for tape followed by a disk interface for the early single sided 8 inch floppy.
Then hand coded a boot strap EPROM that lived at A hex address I have forgot and then bought poly dos on disk
Printer a old Teleltype terminal hooked on to a spare keyboard bit again hand coded routine patched into the correct position
Speed well it was a Z80a so 4 meg
Those were the days
Colossal Cave anyone
Stuart
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