DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-82 ViewScreen™
|Date of introduction:||1994||Display technology:||LCD dot matrix|
|New price:||($120.00 in 2001)||Display size:||8 * 16 characters|
|Size:|| 6.8" x 3.1" x 0.85"
172 x 80 x 32 mm3
|Weight:||6.7 ounces, 190 grams||Serial No:||VS 272016|
|Batteries:||4*AAA + CR1620||Date of manufacture:||mth 01 year 1995 (Q)|
|AC-Adapter:||Origin of manufacture:||Taiwan (I)|
|Precision:||14||Integrated circuits:|| CPU: Toshiba T84C00
ASIC: Toshiba TC14L010
Display: Toshiba T6A04
|Program steps:||27k Bytes||Courtesy of:||Hans Bloemen|
The TI-82 ViewScreen Calculator (VSC) is the teacher version of the standard TI-82. It connects with a special port to a ViewScreen panel via a cable. Placing the panel on the overhead projector enlarges the image of the handheld screen so that each student can follow along. Don't miss the first generation TI-81 VSC permanently connected to a much smaller Panel.
Three ViewScreen panels were available in 2003:
|• Panel 1:
VSC, TI-82 VSC,
TI-83 Plus VSC, TI-83 Plus Silver Edition VSC
• Panel 2: TI-89 VSC, TI-92, TI-92 Plus, Voyage 200
• Panel 3: TI-85 VSC (2nd design), TI-86 VSC
As an alternative the TI-Presenter video adapter connects to a TV or other projection device with a video input port.
a technical point of view the TI-82 VSC is almost identical with the students
TI-82. The main difference you notice is a two piece bottom shell of the
calculator housing to accommodate the ViewScreen electronics.
Dismantling the TI-82 VSC reveals a small printed circuit board (PCB) with two driver chips connected in a piggy back manner to the display board of the calculator.
The main electronics of the TI-82 VSC is identical with the students model TI-82. The featured calculator was manufactured in January 1995 and we located a Z80 compatible Toshiba T84C00 CPU, a Toshiba TC14L010 ASIC (1.0 micron C-MOS gate array with 1,000 usable gates) for the glue logic, a Sharp LH531©1994 (ROM-Version 18.0) with 64k Bytes capacity and a Suwa Seikosha SRM20256 RAM with 32k Byte capacity for both user programs and user data.
The driver circuit of the LC-Display is just one bare Toshiba T6A04 chip mounted on a flexible piece of circuit board attached between the display and the main PCB.
You can check the ROM version of your TI-82
VSC using the following key sequence and reading the number on your screen:
[MODE] [ALPHA] [S]
Information provided by ticalc.org
and Xavier Andréani.
The TI-82 VSC is permitted (as of September 27, 2007) for use on SAT, ACT, PSAT and AP exams.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, June 13, 2003. No reprints without written permission.