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World's First cell phone
In 1973, The worlds first cell phone was placed by a manager at Motorola -
Pagers
Pagers are personal devices designed for simple messages, made it easier to reach someone who was not at home or in the office -
Personal Digital Assistant
PDA's main function was to act as a personal organizer by recording , tracking, and managing personal data -
Smartphones
Smartphones offer maximum computing and connectivity abilities -
Tablets
Tablet computers combine features of smartphones and laptop computers