Personal digital assistant
The first personal digital assistant is considered to be the Psion Organiser, although the term personal digital assistant wasn't used then. GO Corp. was also pioneering in the field. The term was first used on January 7, 1992 by Apple Computer CEO John Sculley at the Consumer Electronics Show in Las Vegas, Nevada, referring to the Apple Newton. PDAs are sometimes referred to as Palms, Palm Pilot or Palm Tops.The Microwriter AgendA, a spinoff of the chording-keyboard based writing instrument endorsed by Douglas Adams, may predate that.