Vocaloid is NOT a cartoon nor an anime. It is just a singing synthesis program made by Kenmochi Hideki and other companies.
Vocaloid isn't a cartoon, it's a Vocal simulation programme which allows music producers to use to make vocals for the music they make. There are over 20 Vocaloids, and more are being improved and released. To find more about it, wikipedia Vocaloid.
Yamaha created and developed the Vocaloid technology. See the Vocaloid wiki article for more details about the technology and its impact on the internet.
LEON and LOLA created by Zero-G ltd. in 2004. They belong in the VOCALOID 1.
Miku is part of a Japanese voice synthesizer named VOCALOID not an anime
Kenmochi Hideki / in 2000 .
Yes. She is a VOCALOID 2 software created by INTERNET CO. LTD. Her voice provider name is Megumi Nakajima. She has an update, native, and english voice bank in VOCALOID 3.
Cartoon Network Cartoon Beach was created in 1999.
If you do not count prototypes (that would be Yamaha themselves) then the first commercially available Vocaloid product, Leon and Lola, were created by Zero-G, a UK based company, in 2004.
Cartoon Planet was created in 1995.
What-a-Cartoon was created on 1995-02-20.
Cartoon Saloon was created in 1999.
The Cartoon Museum was created in 2006.