DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-81 ViewScreen™ (1993)
| Date of introduction: | October 1993 | 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: | 7.7 ounces, 218 grams | Serial No: | |
| Batteries: | 4*AAA | Date of manufacture: | year 1993 |
| AC-Adapter: | Origin of manufacture: | Taiwan (I) | |
| Precision: | 13 | Integrated circuits: | CPU: Toshiba T6A43 ROM: LH5359©1991 RAM: LH5160 Display: 2*T6A39, T6A40 |
| Memories: | 0-27 | ||
| Program steps: | 2,400 Bytes | Courtesy of: | Joerg Woerner |
Texas Instruments changed in 1993, together with the introduction of the TI-82,
the design of the TI-81 slightly. Please notice the
position of the TI-logo, it moved from the upper right position to the upper
left of the screen.
The TI-81 ViewScreen
is the teacher version of the standard TI-81.
It connects with a special port permanently to a ViewScreen panel via a
flat-ribbon cable. Placing
the panel on the overhead projector enlarges the image of the handheld screen so
that each student can follow along. From
a technical point of view the TI-81 VSC is almost identical with the students
TI-81. The main difference you notice is a two piece bottom shell of the
calculator housing to accommodate the ViewScreen electronics.
Dismantling the TI-81 VSC reveals a small printed circuit board (PCB) with one driver chip connected in a piggy back manner to the display board of the calculator. The main electronics of the TI-81 VSC is identical with the students model TI-81. Don't miss the similar TI-85 ViewScreen connected to the first generation TI-85 VSC.
Texas Instruments revised the concept of the ViewScreen in 1994 and even 15 years later were four ViewScreen panels available:
| • Panel 1:
TI-73 VSC, TI-73 Explorer VSC,
TI-80
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.
ROM-Versions:
1.1
1.1K
You can check the ROM version of your TI-81
VSC using the following key sequence and reading the number on your screen:
