Computer Systems & Mobile Technologies By R07324 Apr 22, 1964 first desktop computer released Apr 3, 1981 Laptop Invented The laptop was invented by Adam Osborne in 1981 Mar 19, 1984 First 'PDA' released Mar 19, 1993 MP3 Player released Mar 19, 1994 first tablet concept trialed until 1997 Apr 19, 1996 First netbook released Mar 16, 1997 Smartphone released 'penelope'
