Texas Instruments TI Programmable 57 (1st Italy design)

Date of introduction:  May 24, 1977 Display technology:  LED-stick
New price:  $79.95 Display size:  8 + 2
Size:  5.8" x 3.1" x 1.4"
 148 x 78 x 36 mm3
Weight:  6.4 ounces, 180 grams Serial No:  995386
Batteries:  BP7 Date of manufacture:  wk 44 year 1977
AC-Adapter:  AC9132 Origin of manufacture:  Italy (RCI)
Precision:  11 Integrated circuits:  TMC1501
Logic:  AOS - 4 Pending Operations, 9 ()    
Memories:  8    
Program steps:  50 Courtesy of:  Joerg Woerner
    Download manual:   (DE: 13.1M Bytes)

TI-57_Italy_1.jpg (45271 Byte)This TI-57 manufactured in Italy looks different to the original TI-57. Instead of the usually molded TI-logo and TEXAS INSTRUMENTS nameplate this one uses just a sticker. 

We know this type of display frame from some other European calculators:

TI-30 1st design
TI-45 1st design
Privileg SR-35NC

Don't miss the Radio Shack EC-4000 with a slightly different sticker between the display and keyboard.

Later during production of the TI-57 the sticker was replaced to match the US-design, view a TI-57 manufactured in Italy in 1980 here.

Find a nice collection of program listings for the TI-57 on Laurent's website.

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If you have additions to the above article please email:

Joerg Woerner, June 13, 2003. No reprints without written permission.