Casio FX-603P
An FX-603P in working condition  | |
| Type | Programmable scientific | 
|---|---|
| Manufacturer | Casio | 
| Introduced | 1990 | 
| Calculator | |
| Entry mode | Infix | 
| Precision | 12 digits mantissa, ±99 exponent | 
| Display type | LCD Dot-matrix | 
| Display size | 2×16 Character | 
| Programming | |
| Programming language(s) | Keystroke (fully merged, Turing complete) | 
| Memory register | 110 | 
| Program steps | 6,144 | 
| Interfaces | |
| Ports | one vendor specific | 
| Connects to | Compact Cassette via:
 Line Printer via one of: PC via one of:  | 
| Other | |
| Power supply | 2×"CR-2032" Lithium + 1×"CR-2032" Lithium | 
| Weight | 141g, 5 oz | 
| Dimensions | 15.24x7,6x1.2 cm, 6"×3"×½" | 
The FX-603P was a programmable calculator, manufactured by Casio from 1990. It was the successor model to the Casio FX-602P. Since it was only released in a limited number of countries in small quantities, it is now an excessively rare item which commands high prices when sold.