DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-30Xa Solar School Edition (Virgina 2nd edition)
|Date of introduction:||2005||Display technology:||LCD|
|New price:||$11.99||Display size:||10 + 2|
|Size:|| 5.9" x 3.0" x 0.50"
150 x 75 x 13 mm3
|Weight:||2.9 ounces, 82 grams||Serial No:|
|Batteries:||n.a.||Date of manufacture:||mth 12 year 2004|
|AC-Adapter:||Origin of manufacture:||China (N)|
|Precision:||12||Integrated circuits:||Toshiba T6M79|
|Program steps:||Courtesy of:||Joerg Woerner|
Department of Education, Virginia requested Texas Instruments to disable the
decimal-to-fraction key of the TI-30 Xa
Solar School Edition. But in January, Dakota Brown, a 12-year-old at Carver Middle School in suburban Richmondís Chesterfield County, figured out that by pressing two other keys on his state-approved TI-30 Xa Solar School Edition
for Virginia, he could change decimals into fractions anyway.
Texas Instruments recalled 160,000 calculators and replaced them with the 2nd edition of the TI-30Xa Solar School Edition for Virginia. It is obvious that this edition removed not only the [a b/c] key but even the misused [<-] key.
the calculator is not as exciting as expected. The TI-30Xa Solar School Edition
for Virginia (2nd edition) makes use of a printed circuit board (PCB)
known already from the TI-30 Xa Solar. We assume that the contacts of the two
keys were removed but we couldn't proof it.
From much higher interests are two other details:
The PCB was manufactured in week 47 of the year 2004 according to the date code 4704 which was end of November that year. The backside of the calculator reads N-1204C which interprets as "Manufactured by Nam Tai Electronics, Inc. in December, 2004".
This early manufacturing date is very confusing because the
newspapers stated in their June 8, 2005 prints:
"But in January, Dakota Brown, a 12-year-old at Carver Middle School..."
It is confusing how Texas Instruments manufactured already in December 2004 calculators with a fault corrected that was discovered in January, 2005.
Don't miss the third edition of the
TI-30Xa Solar School Edition quietly
introduced in 2013.
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© Joerg Woerner, June 26, 2005. No reprints without written permission.