TI-59 magnetic card - Revision history

Dan Tobias at 12:00, 13 June 2014

2014-06-13T12:00:21Z

2013-10-26T16:18:34Z

2012-12-15T15:07:06Z

‎References

2012-12-15T14:48:15Z

2012-12-15T05:06:43Z

‎Character/Key Codes

2012-12-12T13:06:52Z

‎Character/Key Codes

2012-12-08T00:10:50Z

2012-12-08T00:10:12Z

‎Character/Key Codes

2012-12-07T23:55:55Z

2012-12-07T23:53:32Z

‎Character/Key Codes

@@ Line 4: / Line 4: @@
 |released=1977
 }}
 The '''TI-59''' was a [[Programmable calculators|programmable calculator]] from Texas Instruments which was available from 1977 through 1983. It supported the ability to load and save programs using a magnetic-stripe card reader. The TI-58 model was also available at the same time with similar programming features but no card reader. An earlier TI-57 model was also programmable but with more limited features and memory and no storage device to permanently save the programs.

← Older revision		Revision as of 16:18, 26 October 2013
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	* [http://www.scribd.com/doc/58444524/TI-59-Service-Manual TI-59 Service Manual] (lots of useful low-level tech stuff here)		* [http://www.scribd.com/doc/58444524/TI-59-Service-Manual TI-59 Service Manual] (lots of useful low-level tech stuff here)
	* [http://www.ti59.com/ti59.exe TI59 emulator download (for Windows)]		* [http://www.ti59.com/ti59.exe TI59 emulator download (for Windows)]
		+
		+	[[Category:Texas Instruments]]

← Older revision		Revision as of 15:07, 15 December 2012
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	* [http://www.datamath.org/Sci/WEDGE/TI-59.htm Calculator museum entry]		* [http://www.datamath.org/Sci/WEDGE/TI-59.htm Calculator museum entry]
	* [http://www.scribd.com/doc/58444524/TI-59-Service-Manual TI-59 Service Manual] (lots of useful low-level tech stuff here)		* [http://www.scribd.com/doc/58444524/TI-59-Service-Manual TI-59 Service Manual] (lots of useful low-level tech stuff here)
		+	* [http://www.ti59.com/ti59.exe TI59 emulator download (for Windows)]

@@ Line 5: / Line 5: @@
 }}
-The '''TI-59''' was a [[Programmable calculators|programmable calculator]] from Texas Instruments which was available from 1977 through 1983. It supported the ability to load and save programs using a magnetic-stripe card reader. The TI-58 model was also available at the same time with similar programming features but no card reader.
+The '''TI-59''' was a [[Programmable calculators|programmable calculator]] from Texas Instruments which was available from 1977 through 1983. It supported the ability to load and save programs using a magnetic-stripe card reader. The TI-58 model was also available at the same time with similar programming features but no card reader. An earlier TI-57 model was also programmable but with more limited features and memory and no storage device to permanently save the programs.
 If you ran out of magnetic cards for it, it was apparently possible to make new ones by [http://fixunix.com/handheld/100248-ti-59-magnetic-cards.html cutting up floppy disks].
@@ Line 64: / Line 64: @@
 |19||D'||
 |-
-|20||2nd CLR||Clear All
+|20||2nd CLR||Clear All?
 |-
 |21||2nd||Shift to alternate function

@@ Line 146: / Line 146: @@
 |60||DEG||Degrees
 |-
-|61||GTO||Goto
+|61||GTO||Goto (followed by two-digit label number, stored in one position)
 |-
 |62||PG*||

@@ Line 162: / Line 162: @@
 |68||NOP||No-Op
 |-
-|69||OP||Special operations: followed by two-digit function code, stored in one position
+|69||OP||Special operations (followed by two-digit function code, stored in one position)
 |-
 |70||RAD||Radians
@@ Line 176: / Line 176: @@
 |75||-||
 |-
-|76||LBL||Label
+|76||LBL||Label (followed by two-digit label number, stored in one position)
 |-
 |77||X≧T||

@@ Line 9: / Line 9: @@
 If you ran out of magnetic cards for it, it was apparently possible to make new ones by [http://fixunix.com/handheld/100248-ti-59-magnetic-cards.html cutting up floppy disks].
-The TI-59 had 120 storage registers, divided between program and data memory. They were divided into four banks of 30 registers, and one bank could be stored on a side of a magnetic card, for a total of two banks per card if both sides were used. Thus it took both sides of two cards to store the entire contents of the calculator.
+The TI-59 had 120 storage registers, divided between program and data memory. They were divided into four banks of 30 registers, and one bank could be stored on a side of a magnetic card, for a total of two banks per card if both sides were used. Thus it took both sides of two cards to store the entire contents of the calculator. Each storage register could hold one floating-point numeric value or 8 program key codes.
 The card reader used a four-track head designed to function at a speed between 2.0 and 2.5 inches per second. Track one is closest to the edge of the card. The write signal is a square wave of ± 1.5 V.

@@ Line 104: / Line 104: @@
 |39||COS||
 |-
-|40||IND||
+|40||IND||Indirect (followed by 2-digit memory location, stored in 1 item; uses contents of that as memory location to finally access)
 |-
 |41||SST||Single-Step

← Older revision		Revision as of 23:55, 7 December 2012
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	If you ran out of magnetic cards for it, it was apparently possible to make new ones by [http://fixunix.com/handheld/100248-ti-59-magnetic-cards.html cutting up floppy disks].		If you ran out of magnetic cards for it, it was apparently possible to make new ones by [http://fixunix.com/handheld/100248-ti-59-magnetic-cards.html cutting up floppy disks].
		+
		+	The TI-59 had 120 storage registers, divided between program and data memory. They were divided into four banks of 30 registers, and one bank could be stored on a side of a magnetic card, for a total of two banks per card if both sides were used. Thus it took both sides of two cards to store the entire contents of the calculator.

	The card reader used a four-track head designed to function at a speed between 2.0 and 2.5 inches per second. Track one is closest to the edge of the card. The write signal is a square wave of ± 1.5 V.		The card reader used a four-track head designed to function at a speed between 2.0 and 2.5 inches per second. Track one is closest to the edge of the card. The write signal is a square wave of ± 1.5 V.

@@ Line 104: / Line 104: @@
 |40||IND||
 |-
-|41||SST||
+|41||SST||Single-Step
 |-
 |42||STO||Memory store (followed by 2-digit memory location, stored in 1 item)
@@ Line 200: / Line 200: @@
 |88||D.MS||Degrees/Minutes/Seconds
 |-
-|89||π||
+|89||π||Pi
 |-
-|90||LST||
+|90||LST||List data registers on printer
 |-
 |91||R/S||Run/Stop
@@ Line 214: / Line 214: @@
 |95||=||
 |-
-|96||WRT||
+|96||WRT||Write to magnetic card
 |-
 |97||DSZ||Decrement and skip at zero
 |-
-|98||ADV||
+|98||ADV||Printer paper advance
 |-
 |99||PRT||Print