C/on
Spacebar
Retro Calculator Simulator
Litronix 2140
© LITRONIX, INC.
CUPERTINO, CALIFORNIA
4VDC 300 MW
Use AC adapter #102 for 110 volts
Use AC adapter #104 for 230 volts
INSTRUCTION
- Turn on calculator, press C/on.
- Turn off calculator, press off.
- Clear calculator, but not memory, press C/on twice.
- Clear entry, overflow, or error, press C/on once.
- Change sign of display, press +/– once.
- Add contents of display to memory, press M+.
- Recall memory to display, press RM once.
- Clear memory, press RM twice.
KEYBOARD SHORTCUTS
Button
Shortcut
off
Escape
0 – 9
0 – 9
.
. (dot) or , (komma)
+
+
–
–
×
*
÷
/
=
Enter
%
%
+/–
Ctrl
√x
V
x²
S
1/x
I
M+
M
RM
R
ABOUT
The "Retro Calculator Simulator" was created with inspiration from "Litronix 2140" pocket calculator. The actual functionality and outlook may differ from original, because I didn't posses the physical calculator.
Vectorial image was created using the photo by Hans Bloemen from calculatormuseum.nl
As page background an image by GarryKillian from freepick.com was used.
The calculator is drawn using open source software "Inkscape", the app is created using HTML, CSS and JavaScript.
You can take a look at the code at projects GitHub.
If you want to see more projects, made by me, please visit my protofolio: skersys.eu.
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