Yes! Mi first machine was also a TRS-80, but a CoCo (Color Computer). It had 
left arrow and up arrow glyphs too.

To have lowercase, I wrote a character generator that worked in graphics 
mode. Instead of just 32x16 upper case, I could do 51x24, 64x24 and 85x24 in 
upper and lower case. Oh, those good old times when you could understand the 
whole computer...

Cheers,
Juan

----- Original Message ----- 
From: "Hans-Martin Mosner" <hmm at heeg.de>
To: "The general-purpose Squeak developers list" 
<squeak-dev at lists.squeakfoundation.org>
Sent: Wednesday, March 08, 2006 6:51 PM
Subject: Re: 3.9a-7006: ":=" replaced by "_"


> Actually, it's the other way round... early versions of ASCII (1963) had 
> the left and up arrow symbols. Only later (1967) they morphed into 
> underscore and circumflex accent (see http://en.wikipedia.org/wiki/ASCII). 
> Looks like the early Smalltalk implementors had an ASCII-1963 manual 
> floating around, or they were printing out source code on older printers 
> with those glyphs...
> My first "real" computer (a TRS-80) also had left arrow and up arrow 
> symbols in its character ROM (and no lowercase letters until I soldered an 
> additional memory chip onto the 7-bit screen memory...), so it seemed very 
> natural to me when I was introduced to Smalltalk a number of years later.
>
> Cheers,
> Hans-Martin
>