Off Hook - OH is a modem indicator light that tells you the phone line is open and ready for communications.
When a computer is not connected to a host system or the Net, it is offline.
The On-Line Guitar Archive - Orinally an FTP site and later a Web site it is a collection of guitar tablature for thousands of songs. It also contains lessons, chord charts, software, information on building guitars, and many links to other guitar-related Web sites.
Unfortunatley, this Internet site, as well as it's many mirrors have been shutdown because of copyright infringement. The library of files on OLGA have been sent in by internet users since 1992. It developed out of the usenet newsgroups alt.guitar.tab and rec.music.makers.guitar.tablature. OLGA is provided free of charge and is run by volunteers. It is made available worldwide thanks to the generosity of these theivarious mirrors.
Most of the files in the archive will be found in the directories a-z and 1-9; they are organized according to the first letter/number of the band's name or artist's last name, but OLGA also contains a number specialised directories, dedicated to classical music, acoustic guitar, praise songs, country music and ChordPro formatted songs (the classical, acoustic, praise_songs, cowpie and chordpro directories, respectively.)
When a user is connected to a network, they are described as being on-line.