Twelve-C is a Desk Accessory (DA) that emulates an HP 12c financial
calculator (released in 1981), including programming features and
offers an option to display all registers. Originally created by
Richard Reich of Dreams of the Phoenix, Inc., the program was released
on Sept. 1, 1985 and sold for $39.95. It was advertised as working
even on a 128K Macintosh. Twelve-C was later sold by Positive Works,
Inc. Internet Archive hosts a full-page [MacUser magazine
advertisement][1].
You will need [Font/DA Mover][2] to add the DA to your the boot floppy
or hard disk of your choice (System 6 & below).
If you are using System 7, simply double-click the DA suitcase, then
when a window opens showing you the app inside, drag the app out. Then
you can put the app into your Apple Menu Items folder for easy
launching.
* * *
DL#1: DEMO of an HP 12c calculator emulator on 800K disk image.
(Version 1.1, Sept. 1985) (Compatible with Mini vMac and FloppyEMU)
DL#2: Full Version (not a Demo), imaged as a Disk Copy 4.2 (DC42) file
from the original 800K floppy (bootable). No version number given in
the software itself, but the About box copyright date is 1988, and the
disk label says 1990. Front cover of included manual says it is
Version 2.0. (Compatible with Mini vMac and FloppyEMU.)
DL#3: Same as DL#2 but imaged as a MOOF. (Compatible with FloppyEMU
but not Mini vMac)
* * *
FULL VERSION CREDITS
Mark Jozaitis of MacEffects obtained an original working copy (fully
packaged) and supplied it to Jonathan Adar for imaging. Jonathan
created the DC42 and MOOF images. The disk was locked and kept away
from magnets during the process, ensuring an ideal archive from the
original media.
?JDW
Compatibility
Architecture: 68k
[1]:
https://archive.org/details/MacUser8512December1985/page/n6/mode/1up
[2]:
http://macintoshgarden.org/apps/fontda-mover
