1 Sep
2006
1 Sep
'06
8:39 p.m.
Subject: Re: Octal
From: ard at p850ug1.demon.co.uk (Tony Duell)
Date: Sat, 02 Sep 2006 00:36:59 +0100 (BST)
To: cctalk at classiccmp.org
I have two 12 digit bottles, 4 individual digits and a 40x2 bottle of
the VF type and a working Sharp calc that uses said VF disply.
Allison
Seven segment displays are also ergonomic
disasters - the military
found it is far easier to read a seven segment display incorrectly
than just about every other method.
Does anyone else remmeber the 8 and 9 segment displays used by (IIRC)
Sharp in the early 1970s. They were vacuum flourescnet, single digit to
an envelope, made by Itron (IIRC). The segments were curved, and you got
much more natural-looking digits than from a 7 segment straight-bar
display. Of course the problem that 2 rapidly alternating digits can look
like something totally different remains.
-tony