DATAMATH  CALCULATOR  MUSEUM

Texas Instruments TI-2700 Mini Data Bank

Date of introduction:  1987 Display technology:  LCD 
New price:   Display size:  6 char + 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)

MiniDataBank_P1.jpg (441042 Byte)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.

MiniDataBank_1.jpg (41267 Byte)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 multifrequency 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.

The MINI DATA BANK is featured in the Texas Instruments Incorporated bulletin CL-938A dated 1987.

 

horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, January 17, 2002. No reprints without written permission.