Comment Comment by drakaal Yeah.But even Wikipedia got it wrong. Sun had optical mice in the 1980's and you could get a version for the PC from Hewlett Packard in 1997 that used an IR sensor.This paper talks about the history of mice, and mentions that optical mice started in 1981. (though they required a special mouse pad) http://genevalunch.com/wp-content/uploads/2008/12/145378.pdf parent drakaal 12 years ago
But even Wikipedia got it wrong. Sun had optical mice in the 1980's and you could get a version for the PC from Hewlett Packard in 1997 that used an IR sensor.
This paper talks about the history of mice, and mentions that optical mice started in 1981. (though they required a special mouse pad) http://genevalunch.com/wp-content/uploads/2008/12/145378.pdf