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American Micro Products Manual CROM Selector for PC-100A

Date of introduction:	1979	Display technology:
New price:	$90 (October 1981)	Display size:
Size:	2.8" x 5.0" x 1.4" 72 x 126 x 35 mm³
Weight:	5.6 ounces, 160 grams	Serial No:
Batteries:		Date of manufacture:
AC-Adapter:		Origin of manufacture:	USA
Precision:		Integrated circuits:
Memories:
Program steps:		Courtesy of:	Marie Lisa Collas

Texas Instruments introduced with the TI-58 and TI-59 in May 1977 a novelty, the Solid State Software Modules™ with up to 5000 program steps. On the backside of the TI-58/59 you'll notice a small lid with a place for a module. The Master Library with 25 different programs was included, a lot of other modules were available.

American Micro Products of Richardson, Texas addressed with this unique CROM Selector three known problems:

• The access to the module compartment isn't possible with
the TI-58 or TI-59 attached to the printing cradle PC-100A.
• The calculator has to be switched off to change the module.
• The contacts inside the calculators are sensitive to mechanical
and electrical destruction.

The Module Selector fits neatly into the charging bay of the PC-100A and holds up to four Solid State Software Modules in place. Selection of the module is simple and straightforward with a 4-position rotary switch.

The Module Selector should be compatible with the PC-100B and PC-100C printer cradles, too.

American Micro Products sold in 1979 not only the featured Manual CROM Selector, but even an "Automatic CROM Selector:.

If you have additions to the above article please email: joerg@datamath.org.