Casio PB-100

Serial number None, made in Japan
Accessories OR-1: 1 kByte RAM card installed
Condition Excellent! A number of very small scratches on the front plus a dent in the housing on the back.
Repairs, Comments
Acquired 18.6.2003
Type, Precision, Input mode Scientific, 10 BCD digits, exponent ±99, Algebraic
Programmable Yes, BASIC. Up to 10 programs can be stored.
Performance Index -
Memory 1.9k RAM built in (544 steps, one step per byte), optional OR-1 Memory Pack (total 1568 steps), 10k ROM. Permanent memory.
Display 12 digit 5x7 pixel black&white LCD plus annunciators.
Separate contrast adjustment knob on the right side of the unit.
Special features ANS key to retrieve the result of the last calculation
Original Pricing, Production 1983, approx. $70
Batteries 2x large button size cell
Dimensions Length 7.1, cm, Width 16.5cm, Height 1.2cm
Links TRS-80 Hardware Manual Download Page.
TRS-80 Revived Pages (Ira Goldklang)
TRS-80 PC-4 Owner's Manual (English PDF)
Comment This unit was also sold by Tandy/Radio Shack as the TRS-80 PC-4.
Here's a complete list of the TRS-80 devices and what they really were:
Sharp PC-1211
Sharp PC-1500A
Sharp PC-1251
Casio PB-100
Casio fx-780P
Casio fx-795P
Casio fx-5200P
Sharp PC-1246
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