This topic might have a better name.
Computer keyboard, to distinguish from musical keyboards, like April has.
Talk about it here.
A keyboard was an imputing-device often used in conjunction with a computer. They were also built-in to laptops. (TV: The Bells of Saint John)
Rose Tyler used one in 2005 to look for the Ninth Doctor. She eventually found Clive Finch. (TV: Rose)
Mickey Smith used one in 2006. He later used it to hack UNIT and prevent an attack by the Slitheen with the assistance of the Doctor. (TV: Aliens of London/World War Three)
Torchwood One used them just before the Battle of Canary Wharf in 2007. (TV: Army of Ghosts / Doomsday)
Tanya Adeola used one in 2016. (TV: The Coach with the Dragon Tattoo)
Adelaide Brooke used ones installed in Bowie Base One in 2059. (TV: The Waters of Mars)