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The Casio FX-720PF computer

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Technical specifications
RAM (total)	:	2 / 4 Kb (1 ramcard of 2 or 4 Kb)
RAM available	:	1,568 / 3,616 bytes
ROM	:	27 Kb
CPU	:	VLSI specific
Text screen	:	1 line of 12 characters
Graphic screen	:	No
Sound	:	Dual tone beep (high, low)
Size	:	164 x 82 x 14 mm
Weight	:	183 g. with batteries and a ramcard
Year	:	198?
Power	:	2 CR-2032 lithium batteries
Extensions
Memory	:	RC-2    2 Kb lithium battery saved
		RC-4    4 Kb lithium battery saved
Printer	:	FP-12   Thermal technology
		FP-12S Thermal technology
		FP-12T Thermal technology
		FP-40   Thermal technology (using the SB-42)
Storage	:	FA-3     External tape interface
		FA-5     External tape interface
		FP-40    External tape interface (using the SB-42)
Communication	:	SB-2      Link cable