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CSA keyboard
 The CSA keyboard, or CAN/CSA Z243.200-92, is the official keyboard layout of Canada. Often referred to as ACNOR, it is best known for its use in the Canadian computer industry for the French ACNOR keyboard layout, published as CAN/CSA Z243.200-92.[1] [2] Canadian Multilingual Standard (CMS) on Windows is based on this standard, with a few differences. IBM has also developed a layout based on the CSA keyboard, called Canadian French IBM ID-445. Apple use this layout as their default French Canadian keyboard since the 90s (Canadian - CSA). ACNOR is an acronym of the former French name (Association canadienne de normalisation) of the CSA Group,[3] a standards organization headquartered in Canada. The initialism CSA[3] (from the former English name Canadian Standards Association) is now used in both official languages. DescriptionThe standard has undergone some changes but remains focused on the principle of eliminating dead keys as much as possible, using dedicated keys for ÇÈÀÉÙ. For example, the dead key for the cedilla (which can apply to different letters, such as ⟨ț⟩ in Romanian) on the old Canadian French IBM ID-058 keyboards was replaced in the primary group with a key that directly types the c-cedilla ⟨Ç/ç⟩, since it is the only letter in French with this diacritical mark. The cedilla key (dead letter) is still present in the secondary group 2a (see Figure 2) in the Canadian standard. It is possible to completely do without the dead key for the grave accent, as the only three French letters that use it (À, È, and Ù) are directly accessible in both lowercase and uppercase on this keyboard. However, the grave accent (dead key) remains in the primary group to type the characters ù/Ù on an ANSI keyboard, which lacks a key to the left of the Z key. In Figure 2, the rectangles indicate a diacritical mark. The Canadian standard defines three explicit levels of compliance and one implicit level: 
 The Quebec standard SGQRI-001 also has included the ligature ⟨Œ⟩ since 2006, in addition to the characters from Group 1 and 2a, going beyond level of compliance B of the Canadian standard. The presence of this character is part of a subgroup conforming to ISO/IEC 9995-3 (secondary group). The characters in green (Group 2b in Figure 2) were not included in most keyboards and drivers, partly due to the limitation of the ISO 8859-1 encoding and the limited availability of Unicode on computers until the early 2000s. The ring-above symbol ⟨ ˚⟩, which should not be confused with the degree sign ⟨°⟩ and the ordinal indicator ⟨º⟩, is part of Group 2b, while the characters å and Å from Swedish, produced by combining ring-above and a/A, are in Group 2a. For the macron ⟨¯⟩, the standalone character (with spacing) is part of Group 2a, but accented characters like ā/Ā are considered scholarly letters (Group 2b), which go beyond level B compliance (Groups 1/2a). These characters are present in the ISO 6937 standard but not in the ISO 8859-1 standard. Indeed, the use of this character as a diacritical mark allows writing only in a language other than the 14 officially supported languages on keyboards conforming to level B compliance (Albanian, German, English, Catalan, Danish, Spanish, Finnish, French, Italian, Icelandic, Dutch, Norwegian, Portuguese, Swedish). The standalone macron character is included in the ISO 8859-1 standard. In Figure 2, these two symbols (the macron and chief circle) are coloured purple, as they provide access to at least one character in Group 2a. The symbol ⟨Ÿ⟩, produced by combining diaeresis (Group 1) and Y (Group 1), is in Group 2b, while ⟨ÿ⟩ (lowercase), produced by combining diaeresis (Group 1) and ⟨y⟩ (Group 1), is in Group 1. For more details, the official document includes a detailed list of the characters from Groups 1, 2a, and 2b. ISO 9995-3 The ISO 9995-3 standard specifies the placement of the secondary group and characters on a key (these must be aligned to the right of the primary group). The standard can serve as a reference for including a subgroup of characters in a layout that goes beyond the level of conformity described by the Canadian standard CSA Z243.200-92. Certain characters from group 2b or others not integrated into the CSA standard, such as the euro sign, can be included by referring to them as a subgroup of the ISO 9995-3 standard, in addition to the supported level of conformity. ISO 9995-7In Part 7 of the ISO 9995-7 standard, standardized pictograms provide neutral and efficient labeling, avoiding the need to transcribe legends in both French and English. These symbols have also, for the most part, been integrated into Unicode for several years. The symbol for selecting level 3 is represented in the ISO 9995-7 standard with two overlapping arrows, resembling a Christmas tree. The selection key for group 2 is an arrow pointing to the right (blue arrow). The government standard for the Quebec public service SGQRI-001 requires the use of standardized pictograms following the ISO 9995-7 standard or function key labelling in French only in its calls for tenders. The Canadian TBITS-5 standard also recommends this at the federal level. The CSA Z243.200-92 standard, on the other hand, does not require the use of pictograms for labelling function keys. However, the use of the pictogram for the non-breaking space bar is mentioned in the document. The labelling of dead keys with rectangles and the soft hyphen in parentheses (-), goes beyond Canadian and Quebec standards.
Notes : Number of the pictogram corresponding to the ISO 9995-7 standard, followed in order by its definition, the ISO 7000 or IEC 417 number, and the Unicode character for entering it on the computer. Some pictograms require the installation of a compatible font. See alsoReferences
External links
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