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
|Program steps:||Courtesy of:||Joerg Woerner|
|Download leaflet:||(US: 1.0 MByte)||Download manual:||(US: 3.2 MByte)|
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: email@example.com.
© Joerg Woerner, January 17, 2002. No reprints without written permission.