Personal organizer and Scratch pad

Personal organizer noun - A lightweight consumer electronic device that looks like a hand-held computer but instead performs specific tasks; can serve as a diary or a personal database or a telephone or an alarm clock etc..

Scratch pad and personal organizer are semantically related. In some cases you can use "Scratch pad" instead a noun phrase "Personal organizer".

Scratch pad noun - Pad for preliminary or hasty writing or notes or sketches etc.

Personal organizer and scratch pad are semantically related. Sometimes you can use "Personal organizer" instead a noun phrase "Scratch pad".