Computer keyboard
From Tardis Wiki, the free Doctor Who reference
A keyboard was an imputing-device often used against a computer.
Rose Tyler used one in 2005 to look for the Ninth Doctor. She eventually found Clive. (TV: Rose)
Micky 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)
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)
