DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-2700 Mini Data Bank
Date of introduction: | 1987 | Display technology: | LCD |
New price: | Display size: | 6 characters + 12 digits | |
Size: | 5.5" x 2.6" x 0.4" | ||
Weight: | 2.9 ounces | Serial No: | |
Batteries: | 3*LR43 + CR1220 | Date of manufacture: | mth 08 year 1988 |
AC-Adapter: | Origin of manufacture: | Taiwan (I) | |
Precision: | 8 | Integrated circuits: | CPU: Toshiba Txxxx RAM: Toshiba TC5518 |
Memories: | 2.8kB RAM | ||
Program steps: | Courtesy of: | Joerg Woerner | |
Download leaflet: | (US: 1.0 MByte) | Download manual: | (US: 3.2 MByte) |
Texas
Instruments introduced in 1987 this powerful TI-2700 Mini Data Bank. The memory
capacity of 2.8k Byte RAM holds as much as 150 names and the related phone
number, anniversary date or similar.
A
metal plate above the keyboard could be shifted a fraction of an inch to cover
the hidden calculator functions. Don't miss the innovative design of the TI-2900
Info Bank.
The innovative Mini Data Bank traces
back to the Time Manager. A
similar product was introduced by Toshiba nine years earlier with the LC-836MN.
Dismantling
this TI-2700 Mini Data Bank manufactured in August 1988 by Inventec
Corporation in Taiwan reveals an interesting design centered around a
Toshiba Application Specific CPU and an additional RAM chip with 2k Byte
capacity.
Please notice the three LR43 working batteries supported
by a CR1220 backup battery to maintain the data of the memory.
Don't
miss the odd PS-9100 Jot-it Appointment Reminder.
About three years later with the TI-2100 Pocket Info a similar product with the size of a credit card was introduced. The PS-2100 continued the line of small Databanks.
The TI-3100 Pocket Dialer combined the Databank feature with a small loudspeaker to generate the multi-frequency dial tones. The TI-2400 Phone Bank uses only 9 keys for alphanumeric entry like a phone.
In Germany the color schema of the TI-2700 Mini Data Bank
was slightly changed.
Texas Instruments launched in 1987 a very innovative product line with the TI-2400
Phone Bank, TI-2600
Personal Banker, TI-2700
Mini Data Bank, and TI-2800
Paperless Printer continued till 1990 with the TI-2100
Pocket Info, TI-2900
Info Bank, TI-3100
Pocket Dialer, TI-3200
Pro Dialer, and TI-3400
EUROPA.
If you know the history of Texas Instruments it seems to commemorate the introduction of the TI-2500 Datamath a quarter century ago.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 17, 2002. No reprints without written permission.