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.
Four ViewScreen panels were available in 2008:
|• Panel 1:
TI-73 VSC, TI-73 Explorer VSC,
TI-82 VSC, TI-83 VSC,
TI-83 Plus VSC, TI-83 Plus Silver Edition VSC, TI-84 Plus VSC,
TI-84 Plus Silver Edition VSC
• Panel 2: TI-89 VSC, TI-89 Titanium VSC, TI-92, TI-92 Plus, Voyage 200
• Panel 3: TI-85 VSC (2nd design), TI-86 VSC
• Panel 4: TI-Nspire, TI-Nspire CAS, TI-Nspire Touchpad, TI-Nspire CAS Touchpad
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 featured TI-82 VSC manufactured in January 1995 by Inventec Corporation in Taiwan 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. We located on the PCB 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. Learn more about the Hardware Architecture of TI’s Graphing Calculators.
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: email@example.com.
© Joerg Woerner, June 13, 2003. No reprints without written permission.