DATAMATH CALCULATOR MUSEUM
|Date of introduction:||1974||Display technology:||VFD|
|New price:||Display size:||8|
|Size:||6.9" x 4.2" x 1.8"|
|Weight:||16 ounces||Serial No:||4200172X|
|Batteries:||6*AA cells||Date of manufacture:||year 1974|
|AC-Adapter:||Origin of manufacture:||Japan|
|Precision:||8||Integrated circuits:||NEC uPD277C|
|Program steps:||Courtesy of:||Joerg Woerner|
Sharp Electronics Corporation introduced end of the year 1969 with the EL-8 the first portable, battery operated calculator. It uses the same technology as the earlier desktop calculator QT-8D.
This EL-8102 continued the approach of the EL-811 to reduce the complexity of the calculator brain. Instead the former two chip architecture based on Rockwell IC's thisone uses a real single-chip design.
Do get an impression about the internal construction just take your time and watch the next pictures carefully.
You like this housing ? Don't miss the EL-808.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, July 22, 2002. No reprints without written permission.