Re: homebrew computer - where to start?
- From: "bg" <bg@xxxxxxxxxx>
- Date: Sun, 4 Sep 2005 11:47:34 -0700
racter@xxxxxxxxx wrote in message
<1125732804.697587.191090@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>...
>hi,
>
>i've been a dedicated computer nerd for about twelve years now. i
>started with a cast-off tandy "laptop" that ran BASIC and have been
>hacking ever since, through 386/486/pentium/etc.
>
>now i find myself much more interested in computer systems that appear
>historically before my introduction to computers, and i'd really like
>to get to know these older computing methodologies more intimately.
>i'd like to try to build a computer from scratch - build my own
>processor, etc. - to gain a greater familiarity with the underlying
>technology.
>
>so where do i start? poking around on the internet, all i can seem to
>find is vendors trying to sell "homebrew" computer parts which
>basically involves piecing together readymade components.
>
>i know that the definition of "computer" covers a pretty wide continuum
>right now, but what i'm interested in building is just the basic
>machine: an electronic device that runs programs, whether it has a
>display, printer, or just an array of LEDs as its output.
>
>maybe someone knows a book or something that covers this material.
>
>thanks for your time!
>
>best,
>jake
>
There was a set of books based on the 8080A, and a single board computer
that went along with them. You had to build the SBC, mine was wire wrapped,
program the the startup prom, and supply power. Input was in octal, thru a
keypad and output was thru leds that monitored the data and address busses.
Then you could follow the lessons and interface the SBC to DACs, displays,
8259's etc.
Along the way you would learn assembly language, digital electronics, and
how to interface the two.
Getting some of those old chips might be impossible.The 8080 might have been
Intels first processor. I don't think it ever made it into a PC type of
application but the 8085, 8086, 8088, 286 and so on, all got their start
with the 8080.
The three books I have are all from Howard W Sams and Co
The 8080A bugbook - microcomputer interfacing and programming.
Experiments in digital electronics and microcomputer interfacing and
programming book 1 and 2
.
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