Texinfo1 is a documentation system that uses a single source file to produce both online information and printed output. This means that instead of writing two different documents, one for the online information and the other for a printed work, you need write only one document. Therefore, when the work is revised, you need revise only that one document.
The first syllable of ``Texinfo'' is pronounced
like ``speck'', not ``hex''. This odd pronunciation is derived from,
but is not the same as, the pronunciation of TeX. In the word
TeX, the X is actually the Greek letter ``chi'' rather than
the English letter ``ex''. Pronounce TeX as if the X were the
last sound in the name `Bach'; but pronounce Texinfo as if the x
were a `k'. Spell ``Texinfo'' with a capital ``T'' and the other
letters in lower case.