IBM 96-column card - Revision history

Dan Tobias at 23:21, 16 September 2014

2014-09-16T23:21:48Z

Dan Tobias at 16:20, 16 February 2013

2013-02-16T16:20:50Z

Dan Tobias at 14:27, 14 December 2012

2012-12-14T14:27:04Z

Dan Tobias at 14:24, 14 December 2012

2012-12-14T14:24:54Z

Dan Tobias: Created page with "{{FormatInfo |formattype=physical |subcat=Punched card |released=1969 }} The '''IBM 96-column card''' was introduced in 1969 with the IBM System/3, and became fairly popular ..."

2012-12-14T14:22:45Z

Created page with "{{FormatInfo |formattype=physical |subcat=Punched card |released=1969 }} The '''IBM 96-column card''' was introduced in 1969 with the IBM System/3, and became fairly popular ..."

New page

{{FormatInfo
|formattype=physical
|subcat=Punched card
|released=1969
}}

The '''IBM 96-column card''' was introduced in 1969 with the IBM System/3, and became fairly popular in the 1970s. While it had more columns than the 80-column [[IBM card]], each column had only six punch positions (labeled, from the bottom up, 1, 2, 4, 8, A, and B) compared to the twelve positions of the 80-column cards, and punches were small and round; this allowed three rows of 32 columns to be fit on a 3 13/16" x 4 in. card. More efficient coding schemes were used here than on the 80-column cards, but it still allowed only for uppercase letters. The more compact cards could be used in places the older cards wouldn't fit, and turned up in such locations as tucked inside library books to note the due date, so that on checkin a card-reader could immediately note if it were overdue.

== References ==
* [http://en.wikipedia.org/wiki/Punched_card#IBM_96-column_punched_card_format IBM 96-column card (Wikipedia)]
* [http://www.computerhistory.org/collections/accession/X428.84 96-column cards (Computer History Museum)]
* [http://www.flickr.com/photos/tubetime/3492103709/ Picture: 96-column card]
* [http://www.quadibloc.com/comp/cardint.htm The Punched Card]: shows details of a number of card formats and character encoding schemes
* [http://www.kloth.net/services/cardpunch.php Punched card emulator]
* [http://www.vintagetech.com/ Vintagetech]: company that specializes in recovering and converting old data including punched cards

@@ Line 4: / Line 4: @@
 |released=1969
 }}
 The '''IBM 96-column card''' was introduced in 1969 with the IBM System/3, and became fairly popular in the 1970s. While it had more columns than the 80-column [[IBM card]], each column had only six punch positions (labeled, from the bottom up, 1, 2, 4, 8, A, and B) compared to the twelve positions of the 80-column cards, and punches were small and round; this allowed three rows of 32 columns to be fit on a 3 13/16" x 4 in. card. More efficient coding schemes were used here than on the 80-column cards, but it still allowed only for uppercase letters. The more compact cards could be used in places the older cards wouldn't fit, and turned up in such locations as tucked inside library books to note the due date, so that on checkin a card-reader could immediately note if it were overdue. One form of this card was designated IBM 3700. This had space for a fourth row of text in the human-readable print section at the top of the card (going up to column 128), presumably for labels of use to system operators but not actually used by the computer since there were no holes to punch for those positions.

← Older revision		Revision as of 16:20, 16 February 2013
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	* [http://www.kloth.net/services/cardpunch.php Punched card emulator]		* [http://www.kloth.net/services/cardpunch.php Punched card emulator]
	* [http://www.vintagetech.com/ Vintagetech]: company that specializes in recovering and converting old data including punched cards		* [http://www.vintagetech.com/ Vintagetech]: company that specializes in recovering and converting old data including punched cards
		+
		+	[[Category:IBM]]

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 }}
-The '''IBM 96-column card''' was introduced in 1969 with the IBM System/3, and became fairly popular in the 1970s. While it had more columns than the 80-column [[IBM card]], each column had only six punch positions (labeled, from the bottom up, 1, 2, 4, 8, A, and B) compared to the twelve positions of the 80-column cards, and punches were small and round; this allowed three rows of 32 columns to be fit on a 3 13/16" x 4 in. card. More efficient coding schemes were used here than on the 80-column cards, but it still allowed only for uppercase letters. The more compact cards could be used in places the older cards wouldn't fit, and turned up in such locations as tucked inside library books to note the due date, so that on checkin a card-reader could immediately note if it were overdue. One form of this card was designated IBM 3700.
+The '''IBM 96-column card''' was introduced in 1969 with the IBM System/3, and became fairly popular in the 1970s. While it had more columns than the 80-column [[IBM card]], each column had only six punch positions (labeled, from the bottom up, 1, 2, 4, 8, A, and B) compared to the twelve positions of the 80-column cards, and punches were small and round; this allowed three rows of 32 columns to be fit on a 3 13/16" x 4 in. card. More efficient coding schemes were used here than on the 80-column cards, but it still allowed only for uppercase letters. The more compact cards could be used in places the older cards wouldn't fit, and turned up in such locations as tucked inside library books to note the due date, so that on checkin a card-reader could immediately note if it were overdue. One form of this card was designated IBM 3700. This had space for a fourth row of text in the human-readable print section at the top of the card (going up to column 128), presumably for labels of use to system operators but not actually used by the computer since there were no holes to punch for those positions.
 == References ==