Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/CDC_display_code> ?p ?o }
- CDC_display_code abstract "Display code is the six-bit character code used by many computer systems manufactured by Control Data Corporation, notably the CDC3000 series and the following CDC 6000 series in 1964. The CDC 6000 series, and their followons, had 60 bit words. As such, typical usage packed 10 characters per word.There were several variations of display code, notably the 63-character character set, and the 64-character character set. There were also 'CDC graphic' and 'ASCII graphic' variants of both the 63- and 64-character sets. The choice between 63- or 64-character character set, and between CDC or ASCII graphic was site-selectable. Generally, early CDC customers started out with the 63-character character set, and CDC graphic print trains on their line printers. As time-sharing became prevalent, almost all sites used the ASCII variant - so that line printer output would match interactive usage. Later CDC customers were also more likely to use the 64-character character set.A later variation, called 6/12 display code, was used in the Kronos and NOS timesharing systems in order to support full ASCII capabilities. In 6/12 mode, an escape character (the circumflex, octal 76) would indicate that the following letter was lower case. Thus, upper case and other characters were 6 bits in length, and lower case characters were 12 bits in length.The PLATO system used a further variant of 6/12 display code. Noting that lower case letters were most common in typical PLATO usage, the roles were reversed. Lower case letters were the norm, and the escape character preceded upper case letters.The typical text file format used a zero-byte terminator to signify the end of each record. The zero-byte terminator was indicated by, at least, the final twelve bits of a 60-bit word being set to zero. The terminator could actually be anywhere from 12- to 66-bits long - depending on the length of the record. This caused an ambiguity in the 64-character character set, when a colon character needed to be the final character in a record. In such cases a blank character was typically appended to the record after the trailing colon.".
- CDC_display_code wikiPageExternalLink recode_9.html.
- CDC_display_code wikiPageID "4488830".
- CDC_display_code wikiPageLength "28507".
- CDC_display_code wikiPageOutDegree "141".
- CDC_display_code wikiPageRevisionID "689403708".
- CDC_display_code wikiPageWikiLink 0_(number).
- CDC_display_code wikiPageWikiLink 1_(number).
- CDC_display_code wikiPageWikiLink 2_(number).
- CDC_display_code wikiPageWikiLink 3_(number).
- CDC_display_code wikiPageWikiLink 4_(number).
- CDC_display_code wikiPageWikiLink 5_(number).
- CDC_display_code wikiPageWikiLink 6_(number).
- CDC_display_code wikiPageWikiLink 7_(number).
- CDC_display_code wikiPageWikiLink 8_(number).
- CDC_display_code wikiPageWikiLink 9_(number).
- CDC_display_code wikiPageWikiLink A.
- CDC_display_code wikiPageWikiLink ASCII.
- CDC_display_code wikiPageWikiLink Acknowledge_character.
- CDC_display_code wikiPageWikiLink Ampersand.
- CDC_display_code wikiPageWikiLink Apostrophe.
- CDC_display_code wikiPageWikiLink Asterisk.
- CDC_display_code wikiPageWikiLink At_sign.
- CDC_display_code wikiPageWikiLink B.
- CDC_display_code wikiPageWikiLink Backslash.
- CDC_display_code wikiPageWikiLink Backspace.
- CDC_display_code wikiPageWikiLink Bell_character.
- CDC_display_code wikiPageWikiLink Bracket.
- CDC_display_code wikiPageWikiLink Byte.
- CDC_display_code wikiPageWikiLink C.
- CDC_display_code wikiPageWikiLink C0_and_C1_control_codes.
- CDC_display_code wikiPageWikiLink CDC_3000.
- CDC_display_code wikiPageWikiLink CDC_6000_series.
- CDC_display_code wikiPageWikiLink CDC_6600.
- CDC_display_code wikiPageWikiLink CDC_Cyber.
- CDC_display_code wikiPageWikiLink CDC_Kronos.
- CDC_display_code wikiPageWikiLink Cancel_character.
- CDC_display_code wikiPageWikiLink Caret.
- CDC_display_code wikiPageWikiLink Carriage_return.
- CDC_display_code wikiPageWikiLink Category:CDC_software.
- CDC_display_code wikiPageWikiLink Category:Character_sets.
- CDC_display_code wikiPageWikiLink Colon_(punctuation).
- CDC_display_code wikiPageWikiLink Comma.
- CDC_display_code wikiPageWikiLink Control_Data_Corporation.
- CDC_display_code wikiPageWikiLink D.
- CDC_display_code wikiPageWikiLink Delete_character.
- CDC_display_code wikiPageWikiLink Dollar_sign.
- CDC_display_code wikiPageWikiLink E.
- CDC_display_code wikiPageWikiLink End-of-Text_character.
- CDC_display_code wikiPageWikiLink End-of-Transmission-Block_character.
- CDC_display_code wikiPageWikiLink End-of-Transmission_character.
- CDC_display_code wikiPageWikiLink Enquiry_character.
- CDC_display_code wikiPageWikiLink Equals_sign.
- CDC_display_code wikiPageWikiLink Escape_character.
- CDC_display_code wikiPageWikiLink Exclamation_mark.
- CDC_display_code wikiPageWikiLink F.
- CDC_display_code wikiPageWikiLink Full_stop.
- CDC_display_code wikiPageWikiLink G.
- CDC_display_code wikiPageWikiLink Grave_accent.
- CDC_display_code wikiPageWikiLink Greater-than_sign.
- CDC_display_code wikiPageWikiLink H.
- CDC_display_code wikiPageWikiLink Hyphen-minus.
- CDC_display_code wikiPageWikiLink I.
- CDC_display_code wikiPageWikiLink J.
- CDC_display_code wikiPageWikiLink K.
- CDC_display_code wikiPageWikiLink L.
- CDC_display_code wikiPageWikiLink Less-than_sign.
- CDC_display_code wikiPageWikiLink Line_printer.
- CDC_display_code wikiPageWikiLink M.
- CDC_display_code wikiPageWikiLink N.
- CDC_display_code wikiPageWikiLink NOS_(software).
- CDC_display_code wikiPageWikiLink Negative-acknowledge_character.
- CDC_display_code wikiPageWikiLink Newline.
- CDC_display_code wikiPageWikiLink Null_character.
- CDC_display_code wikiPageWikiLink Number_sign.
- CDC_display_code wikiPageWikiLink O.
- CDC_display_code wikiPageWikiLink P.
- CDC_display_code wikiPageWikiLink PLATO_(computer_system).
- CDC_display_code wikiPageWikiLink Page_break.
- CDC_display_code wikiPageWikiLink Percent_sign.
- CDC_display_code wikiPageWikiLink Plus_and_minus_signs.
- CDC_display_code wikiPageWikiLink Q.
- CDC_display_code wikiPageWikiLink Question_mark.
- CDC_display_code wikiPageWikiLink Quotation_mark.
- CDC_display_code wikiPageWikiLink R.
- CDC_display_code wikiPageWikiLink S.
- CDC_display_code wikiPageWikiLink Semicolon.
- CDC_display_code wikiPageWikiLink Shift_Out_and_Shift_In_characters.
- CDC_display_code wikiPageWikiLink Six-bit_character_code.
- CDC_display_code wikiPageWikiLink Slash_(punctuation).
- CDC_display_code wikiPageWikiLink Substitute_character.
- CDC_display_code wikiPageWikiLink Synchronous_Idle.
- CDC_display_code wikiPageWikiLink T.
- CDC_display_code wikiPageWikiLink Tab_key.
- CDC_display_code wikiPageWikiLink Tilde.
- CDC_display_code wikiPageWikiLink U.
- CDC_display_code wikiPageWikiLink Underscore.
- CDC_display_code wikiPageWikiLink V.
- CDC_display_code wikiPageWikiLink Vertical_bar.
- CDC_display_code wikiPageWikiLink W.