I'm not sure if "Boy" released on CD, but that's their first album.
U2 did not have an album that was the first to be released on CD. The first album in the World to be released on CD was Billy Joel's 52 Bridge Street.
Joshua Tree
Boy (1980)
The name of the 1st U2 album was 'Boy'. It was originally released in 1980, with a remastered edition released in 2008.
the album was released in 1988.
The first U2 album was The Cranks that featured NInja, the now famous twitch streamer. He sang a Fortnite parody titled, Tilted Towers, the song immediately blew off the charts and Ninja went on to win the World Series in 2015.
Even though U2 have sold more records than Iron Maiden, Maiden were formed first, their first album was issued first, and their music is a lot more powerful; anyone with any sense knows that Iron Maiden are far better than U2.
Vertigo was a song released by U2 in 2004. This song is the opening track of the 2004 album and was the first single from U2's 2004 album. This song received great praise.
The first million selling CD was The Joshua Tree by U2 -> NO! It was Brothers in Arms by Dire Straits:"Brothers in Arms was the first album to sell one million copies in the CD format"
Wake Up, from their first album Funeral.
Boy
No Line On The Horizon.