A computer file is a resource for storing information, which is available to a computer program and is usually based on some kind of durable storage. A file is durable in the sense that it remains available for other programs to use after the program that created it has finished executing. Computer files can be considered as the modern counterpart of paper documents which traditionally are kept in office and library files, and this is the source of the term.
Daydream Believer  is a song composed by John Stewart shortly before he left the Kingston Trio. The song was originally recorded by The Monkees, with Davy Jones singing lead vocals. The single hit the number one spot on the U.S. Billboard Hot 100 chart in December 1967, remaining there for four weeks, and peaked at number five in the UK Singles Chart.
Lamm would often play the intro when they performed this song live, which can be heard on their Chicago At Carnegie Hall album. Even thought this song first appeared on the album in 1969, it wasn't released as a single until late 1970, long after their second album had been issued.The song reached its peak of #7 the first week of 1971.The jazz guitarist Grant Green released a 5:10 instrumental cover of this song on his 1971 album Visions.hicago singer and keyboard player Robert Lamm wrote this song and sang lead. He explained on The Chris Isaak Hour : I was a teenager walking down the street in Brooklyn, New York where I grew up. I walked by a movie theater and there was an usher standing outside taking a cigarette break.