On Mon, Jan 19, 2004 at 07:31:07AM -0600, Christopher Cureau wrote:
Then it's high time somebody produced a _real_
computer kit. As in a pile
of standard logic chips (no microoprocessors, no programmed devices, no
FPGAs, although I will allow RAM :-))....
I would really, really like to see something like this...it'd help me
getting started with learining electronics, which is something I've really
^^^^^^^^^^^^^^^^^^^^^
Tssss. Not to discourage you, but a TTL computer with bazillions of ICs
is not really suited for newbies, although there is plenty to learn -
namely on those nasty aspects like circuit timing, delays, glitches,
noise on power and signal lines. TTL is to a large degree analog, not digital,
circuit development ;-)
You might not directly want to start with a monster like Computer 74 or
EGO, but perhaps with a simple ALU/register device: get a 2901 circuit
from BG-Micro and play a bit with it (a breadboard with
lots of switches
and LEDs is sufficient). And then extend it with a 2909/-10/-11
from the same
source and build the micro control for that toy. This is already the
basic step towards an own homegrown system.
wanted to do and not had any practical time to do.
:-) If time is your limiting factor, it will be your limiting factor
here as well.
Holger