ajp166 at bellatlantic.net
Fri Sep 1 19:39:45 CDT 2006
>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
>> 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.
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.
More information about the cctech