goodinventor:
Yes, but who wants to sit all day flipping switches and trying to understand what on earth the computer is saying?
Anyone who wants to really understand binary/octal/hex
Yes, although the code is different depending on the processor.
goodinventor:
Yes, although the code is different depending on the processor.
Don't be ridiculous.
Binary is binary.
Besides, you said you were only supporting the Uno
That's because the pin outs of the boards are different.
goodinventor:
Yes, but who wants to sit all day flipping switches and trying to understand what on earth the computer is saying? And I thought most users hate a user interface like that.
It was a joke ...
...R
Robin2:
It was a joke ......R
spoiler alert
(I was barely half joking though, when I wrote about understanding binary)
I'm sure you did. Please give me a serious answer, though.
goodinventor:
Please give me a serious answer, though.
To which question?
Would it be better just to use a touchscreen shield instead of serial?
Touchscreens, I don't see what that has to do with what you are doing, plus why stop at one form or type of hardware used for IO?
You might like to telnet or SSH into an Arduino, so I guess having TTY consoles would be useful, but then having cursor control would make it pretty as well, think about integrating something like 'ncursors' functions then.
That would save the fingers from getting RSI from switch flipping don't you think? :-X
Oh, and also what would be good would be if we can have something like 'tmux' functionality for multplexing of consoles.
With those functions I could surely releive myself from having to use the small GNU/Linux based boards I mentioned that are about the same cost as an Arduino.
Time for a strong coffee 
How will I show a cursor on serial? There is no way of taking back what has been printed on serial.
Here is Unos 0.0.6. Unos 0.0.6 has Ethernet functionality as well as the old commands.
Unos_0_0_6.ino (8.2 KB)
There is no way of taking back what has been printed on serial.
That's what ASCII code 8 is for.
goodinventor:
How will I show a cursor on serial? There is no way of taking back what has been printed on serial.
Oh, ok and all those years ago when I used to drool over VT100 needing a large drool clothie when near a VT220. 
You don't take back as you say, but you can update.
There's a hint in there somewhere I 'm sure. 8)
Ah, those were the days when real computer gurus knew each 74xx, 4xxx chip function some ECL, ASCII control codes, binary inside out and hex was their preferred counting method by choice and hardware was real hardware too heavy to carry.
Paul
AWOL:
spoiler alert
This Thread has got to the stage where people are just "shooting fish in a barrel"
It's probably more appropriate to Bar Sport - even there it would be unkind.
@goodinventor - before you post any more here please read a book about developing operating systems.
...R
I already have. An OS for the Arduino, however, would be different because it has an 8-bit processor.
An OS for the Arduino, however, would be different because it has an 8-bit processor
Different to what?
The 8080 was an 8 bit processor, yet many different OS were implemented.
I used one of these in my first job after graduation. The clock speed was a lot slower than an Arduino.
goodinventor:
I already have.
? ? ?
An OS for the Arduino, however, would be different because it has an 8-bit processor.
I'm sorry, but what you are demonstrating is NOT an operating system - simply because nothing can operate on it.
...R
What I mean is that operating systems have developed a great deal over the years and so it is hard to find an OS book that is relevant.
Why a book when a simple web page could do?
Check this list with your implementation. And please check the available RTOS for Arduino for comparison.
Cheers!