CASIO FX-790P

Description

Brand:	CASIO
Model:	FX-790P
Type:	BASIC-programmable Pocket Computer
Picture:
Batteries:	CR 2032 x 2 + CR 1220 x 1 (Memory backup)
Lifetime:	Introduced: 1986 Terminated: unknown
Notes:	The CASIO FX-790P is the bigger sibling of the CASIO X-785P. The latter has 1376 bytes of RAM, this one has 7520 bytes of RAM. Memory can be extended, see below. It is foldable, with a special alphanumeric keypad in the upper part where the display is. It is BASIC and Assembly programmable and can also be used to perform manual calculations. Some other things worth mentioning: It has a MEMO function where notes can be stored. It can convert between decimal and hexadecimal values. In its default setting there is a key-beep when pressing keys. The EXT key switches keyboard mode to lower case and special symbols (by using the second function key S). It has special functions for statistical calculations. During manual calculations it is necessary to use the ANS key for operations that need the current value as an operand. The CALC key can be used to quickly perform calculations where the calculator will query for the unknowns specified in a formula. This Pocket Computer has some drawbacks. It doesn’t have a rerun function. In other words, if you type in a long calculation and it turns out to have an error after pressing EXE, the complete calculation has to be retyped. The Pocket Computer doesn’t tell you where in your calculation the error occurred. It also misses up and down arrows to scroll through entered programs. Use the LIST function to list the program and use EXE to skip to the next line. When the NEW ALL command to erase all programs (in WRT mode) does not work this might be due to memory corruption. Insert a pin into the RESET hole to reset the calculator.

Peripherals

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