 |
- Many character sets and encodings have been used in
computers
- In the late 80's, the Unicode Consortium was formed to
create an Universal character set
- The underlying model for Unicode was the character/glyph
model: encode characters, not glyphs
- Characters from existing character sets should be merged,
not separately encoded
- To ensure interoperability with existing character sets, a
rule was established that characters already separately encoded
in one single character set should not be merged (the "source
separation rule")
- This rule is the cause for some inconistencies and barriers
to interoperability
|