Casio · 1985
fx-7000G
An early programmable graphical calculator.
- Released
- 1985
- Price
- £70
- Program memories
- Ten
- Memory
- 4K program and data RAM
- Display
- 96×64 pixels
This was the first graphical calculator. Early models had some odd software bugs: (-1)^0=-1, (-10)^0=1, (-100)^0=-1, and so on. Performing a power calculation immediately after displaying fixed text could also produce an incorrect result; for example, "HELLO":2^3 resulted in HELLO 0.6931471806.