Keystroke programming

Keystroke programming describes a specific way of programming by which each keystrokes on a device or application is recorded in some way and then played back so that the recorded key-presses can be repeated multiple times. Keystroke programming is most commonly but not exclusively found in programmable calculators, but there are keystroke-programmable software applications, too, for example Vim (text editor)

Example: TI Calculators

The Texas Instruments TI-58/58C/59 calculators were programmable, and program storage took the form of a sequence of codes which (mostly) corresponded to the position of keys on the calculator keypad. Here is a simplified diagram of the basic key layout:

	x1	x2	x3	x4	x5
1x	A	B	C	D	E
2x	2nd	INV	lnx	CE	CLR
3x	LRN	x⇌t	x²	√x	1/x
4x	SST	STO	RCL	SUM	yx
5x	BST	EE	(	)	÷
6x	GTO	7	8	9	×
7x
8x
9x

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