21 Sep
2008
21 Sep
'08
9:46 a.m.
Chuck Guzis wrote:
On 21 Sep 2008 at 4:02, Randy Dawson wrote:
Yes, but I think part of this hobby is also having some level of
authenticity.
Although many of the original parts can't be available, some level of
hardware consistency is maintained.
Another group redesigned the ENIAC into a FPGA chip.
Part of an engineer's job is to design within constraints, you lose that
when using advanced technology.
Eliminating this factor when trying to replicate a system is making it
too easy.
You can also say writing an emulator is a form of a reproduction.
Since it's still running on hardware but with a different level of
programming, versus say, Verilog/Vhdl/C
Besides what fun is for all to stand around the table and look down on
one lonely FPGA chip ?
just my 2cents(melted down to 5cents of copper)
=Dan
--
[ Pittsburgh 250th --- http://www2.applegate.org/~ragooman/ ]
There is the ocasional homebuilt, TTL CPU thread
on here. I wanted to
make known this guy, John Plutorak, who reproduced the guidance
computer in his basement:
http://klabs.org/history/build_agc/
Awsome project, take a look. I intend to build one too...
I looked at a couple of documents, fully expecting to see ROM-on-a-
rope and noticed that the implementation was (mostly) SSI/MSI TTL.
You could probably simplify things in terms of construction
tremendously by using FPGA or CPLD methods. The result should be no
more or less accurate to the original than the TTL version