ibm 7094 (personification)
Personification of the IBM 7094. The 700/7000 series of mainframe computers was the first to sing a song, with physicists John Larry Kelly Jr. and Carol Lockbaum programming the earliest known computer-synthesized voice recorded singing a song, Daisy Bell (or Bicycle Built for Two), in 1961, featuring musical accompaniment written by computer music pioneer Max Mathews.
This legacy, among many, many other more noteworthy things, has led some to dub the IBM 7094, through the Kelly-Lochbaum Vocal Tract Model, the grandfather of VOCALOIDs, aided in part by the fact that an early name for the VOCALOID project was "Daisy". The computer series is listed on VocaDB, and some fanart has been drawn personifying the IBM 7094 in a similar fashion to VOCALOIDs, more often than not drawn with Hatsune Miku, due to several duet cover videos existing of the two singing Daisy Bell, pairing the original recording with a new Miku one.