danj1@ihlpz.att.com (Dan Jacobson) (04/02/91)
Index Number: 14591
------- Start of forwarded message -------
from: grackle!bob@ai.mit.edu (Robert J. Chassell)
subject: One handed keyboards
Here are the layouts for left and right handed keyboards.
You might want to post them to misc.handicapped.
The information is taken from:
"The Dvorak Keyboard" by R. C. Cassingham,
1986, Freelance Commications, Arcata, CA
ISBN 0-935309-10-1
The designs are freely redistributable and legally useable by all.
According to R. C. Cassingham in his book, Dvorak was inspired to
design a one handed keyboard for Col. Robert Allen, a writer who lost
his arm during WWII. Cassingham says, "Ten weeks after he got his
one-hand typewriter, Col Allen was typing on it at 56 WPM... On the
one-hand boards, within reach of your sinjgle hand, are the 21 keys
that make up 97.6 percent of all typing."
The Smith-Corona company sold both one and two handed Dvorak
typewriters. (I have a two handed Dvorak typewriter, if someone wants
it). In its design, the Smith-Corona company changed the locations of
non-alphabetical keys.
Here is Dvorak's left handed keyboard, unshifted only:
? ' P F M L J 0 2 3
; Q B Y U R S O . 5 4
- K C D T H E A Z 6 7
" X G V W N I , 9 8
Here is Dvorak's left handed keyboard, including shift keys:
* / ( ) #
? ' P F M L J 0 2 3
: % $
; Q B Y U R S O . 5 4
_ &
- K C D T H E A Z 6 7
! @
" X G V W N I , 9 8
Here is Smith-Corona's left handed keyboard, unshifted only:
= ] / P F M L J 4 3 2 1
; Q B Y U R S O . 6 5
- K C D T H E A Z 8 7
' X G V W N I , 0 9
Here is Smith-Corona's left handed keyboard, including shift keys:
+ [ ? $ # @ !
= ] / P F M L J 4 3 2 1
: %
; Q B Y U R S O . 6 5
_ * &
- K C D T H E A Z 8 7
" ) (
' X G V W N I , 0 9
Here is Dvorak's right handed keyboard, unshifted only:
3 2 0 J L M F P ' ?
4 5 Q . O R S U Y B ;
7 6 Z A E H T D C K -
8 9 X , I N W V G "
Here is Dvorak's right handed keyboard, including shift keys:
# ) ( / *
3 2 0 J L M F P ' ?
$ % :
4 5 Q . O R S U Y B ;
& _
7 6 Z A E H T D C K -
@ !
8 9 X , I N W V G "
Here is Smith-Corona's right handed keyboard, unshifted only:
1 2 3 4 J L M F P / ] =
5 6 Q . O R S U Y B ;
7 8 Z A E H T D C K -
9 0 X , I N W V G '
Here is Smith-Corona's right handed keyboard, including shift keys:
! @ # $ ? [ +
1 2 3 4 J L M F P / ] =
% :
5 6 Q . O R S U Y B ;
& * _
7 8 Z A E H T D C K -
( ) "
9 0 X , I N W V G '
================================================================
And for completeness, Here are the two-handed keyboard designs:
Dvorak's design:
7 5 3 1 9 0 2 4 6 8
? , . P Y F G C R L /
A O E U I D H T N S -
' Q J K X B M W V Z
# ( ) " % _ $ @ * (missing symbol is a US cent sign)
7 5 3 1 9 0 2 4 6 8
: &
? , . P Y F G C R L /
_
A O E U I D H T N S -
;
' Q J K X B M W V Z
Smith-Corona's design, which is ANSI Standard X4.22-1983:
1 2 3 4 5 6 7 8 9 0 ] =
/ , . P Y F G C R L ;
A O E U I D H T N S -
' Q J K X B M W V Z
! @ # $ % & * ( ) [ + (missing symbol is a US cent sign)
1 2 3 4 5 6 7 8 9 0 ] =
? :
/ , . P Y F G C R L ;
_
A O E U I D H T N S -
"
' Q J K X B M W V Z
Best wishes.
Robert J. Chassell bob@gnu.ai.mit.edu
Rattlesnake Mountain Road (413) 298-4725 or (617) 253-8568 or
Stockbridge, MA 01262-0693 USA (617) 876-3296 (for messages)
------- End of forwarded message -------
Dan_Jacobson@ATT.COM Naperville IL USA +1 708 979 6364