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- Apple II
- Technical Notes
- _____________________________________________________________________________
- Developer Technical Support
-
-
- Apple IIc
- #4: Dvorak Keyboard Layout
-
- Revised by: Matt Deatherage November 1988
- Revised by: Cameron Birse February 1986
-
- This Technical Note discusses the Dvorak keyboard layout on the Apple IIc.
- _____________________________________________________________________________
-
- The old, red version of the Apple IIc Reference Manual incorrectly illustrated
- the Dvorak keyboard layout, however, the current Apple IIc Technical Reference
- Manual, Second Edition contains a corrected diagram on page 370.
-
- The diagram in the current manual shows the Dvorak Simplified Keyboard (DSK)
- as it appears and functions on the Apple IIc today. This layout is the ANSI
- standard for the Dvorak keyboard layout, which was not available when the
- original IIc keyboard ROM was created. Previous IIc computers had a DSK
- layout as follows:
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- | | ! | @ | # | $ | % | ^ | & | * | ( | ) | { | } | |
- |esc | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | [ | ] |delete|
- _________________________________________________________________________
- | | ? | < | > | P | Y | F | G | C | R | L | : | + | | |
- |tab | / | , | . | p | y | f | g | c | r | l | ; | = | \ |
- _________________________________________________________________________
- | | A | O | E | U | I | D | H | T | N | S | _ | |
- |control | a | o | e | u | i | d | h | t | n | s | - |return |
- _________________________________________________________________________
- | | " | Q | J | K | X | B | N | W | V | Z | |
- |shift | ' | q | j | k | x | b | n | w | v | z |shift |
- _________________________________________________________________________
- |caps| ~ | | | | | | ||| |/\ |
- |lock| ` | | OA | space bar | CA |<== |==> |\/ ||| |
- _________________________________________________________________________
-
- Figure 1-Dvorak DSK Layout on Early IIc Computers
-
- Due to service part changes and other manufacturing considerations, it is not
- possible to identify which IIc units have which keyboard ROM by looking at
- identification bytes. If a program requires knowledge of this information
- (i.e., a typing program which draws the Dvorak keyboard), it must ask the user
- for input.
-
- One possible way to accomplish this would be for a program to draw a blank
- keyboard layout (except for shift, tab, control, and other keys which do not
- move between Dvorak and Sholes layouts) and ask the user to press the key to
- the right of the left shift key, while the drawing on screen highlights the
- correct key to press. If the key is a Z, the layout is a standard Sholes
- layout. If the key is an apostrophe or quotation mark, the layout is the DSK
- layout shown above. If the key is a semicolon or colon, the layout is the
- ANSI DSK layout on new IIc models. Since such a program must already ask the
- user if the keyboard switch is depressed (indicating a Dvorak layout), making
- this type of inquiry instead will do the trick.
-
- The IIc manual has another DSK diagram in the front, on page 7. This diagram
- correctly shades those symbols which are in different places in the two DSK
- layouts.
-
-
- Further Reference
- _____________________________________________________________________________
- o Apple IIc Technical Reference Manual, Second Edition
-
-