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The scope of the terms Y′UV, YUV, YCbCr, YPbPr, etc., is sometimes ambiguous and overlapping. Y′UV is the separation used in PAL.; YDbDr is the format used in SECAM and PAL-N, unusually based on non-gamma-corrected (linear) RGB, making the Y component true luminance.
In the table below, the column "ISO 8859-1" shows how the file signature appears when interpreted as text in the common ISO 8859-1 encoding, with unprintable characters represented as the control code abbreviation or symbol, or codepage 1252 character where available, or a box otherwise. In some cases the space character is shown as ␠.
Code page 1101 (CCSID 1101), [1] also known as CP1101, is an IBM code page number assigned to the UK variant of DEC's National Replacement Character Set (NRCS). [2] [3] The 7-bit character set was introduced for DEC's computer terminal systems, starting with the VT200 series in 1983, but is also used by IBM for their DEC emulation.
Most display adapters support a single 8-bit hardware code page only. [1] The bitmaps were often stored in an EPROM [ 12 ] [ 13 ] [ 4 ] in a DIP socket . [ 4 ] At most, the hardware code page to be activated was user-selectable via jumpers , [ 14 ] configuration EEPROMs [ 5 ] [ 6 ] or CMOS setup . [ 15 ]
A CCSID (coded character set identifier) is a 16-bit number that represents a particular encoding of a specific code page.For example, Unicode is a code page that has several character encoding schemes (referred to as "transformation formats")—including UTF-8, UTF-16 and UTF-32—but which may or may not actually be accompanied by a CCSID number to indicate that this encoding is being used.
Windows-1254 is a code page used under Microsoft Windows (and for the web), to write Turkish that it was designed for (and the vast majority of users use it for that language, even though it can also be used for some other languages).
Then 6 or 7 bits are replaced by fixed values, the 4-bit version (e.g. 0011 2 for version 3), and the 2- or 3-bit UUID "variant" (e.g. 10 2 indicating a RFC 9562 UUIDs, or 110 2 indicating a legacy Microsoft GUID). Since 6 or 7 bits are thus predetermined, only 121 or 122 bits contribute to the uniqueness of the UUID.
[5] [6] The 7-bit character set was introduced for DEC's computer terminal systems, starting with the VT200 series in 1983, but it is also used by IBM for their DEC emulation. ISO-IR-025 was previously also the French variant of ISO 646 (NF Z 62-010), it was superseded by Code page 1010 (NF Z 62-010:1982, ISO-IR-069) in that respect, [ 4 ] from ...